Merge branch 'release/4.2.1'

Fixes #395

.gitattributes

@@ -7,8 +7,12 @@
 
 # exclude from git export
 /tests export-ignore
-/utilities/ export-ignore
+/demo export-ignore
-
+/docs export-ignore
+/utilities export-ignore
+/docker-compose.yml export-ignore
+/.github export-ignore
+/run_tests_for_all_php_versions.sh export-ignore
 /.gitattributes export-ignore
 /.gitignore export-ignore
 /make-release.sh export-ignore

.github/workflows/ci.yml

@@ -1,8 +1,10 @@
 # https://help.github.com/en/categories/automating-your-workflow-with-github-actions
 
 on:
-  - pull_request
+  pull_request:
-  - push
+  push:
+    branches:
+      - 'master'
 
 name: CI
 
@@ -28,6 +30,7 @@ jobs:
           - "7.3"
           - "7.4"
           - "8.0"
+          - "8.1"
 
         compiler:
           - default
@@ -36,6 +39,9 @@ jobs:
           - os: ubuntu-latest
             php-version: "8.0"
             compiler: jit
+          - os: ubuntu-latest
+            php-version: "8.1"
+            compiler: jit
 
     steps:
     - name: Checkout

.gitignore

@@ -5,7 +5,6 @@
 lexer/*.php
 lexer/*.php.bak
 lexer/*.out
-utilies/*.php
 
 # Dev
 phpunit*

CHANGELOG.md

@@ -6,6 +6,54 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [4.2.1] - 2022-09-14
+
+### Security
+- Applied appropriate javascript and html escaping in mailto plugin to counter injection attacks [#454](https://github.com/smarty-php/smarty/issues/454)
+
+### Fixed
+- Fixed PHP8.1 deprecation errors in modifiers (upper, explode, number_format and replace) [#755](https://github.com/smarty-php/smarty/pull/755) and [#788](https://github.com/smarty-php/smarty/pull/788)
+- Fixed PHP8.1 deprecation errors in capitalize modifier [#789](https://github.com/smarty-php/smarty/issues/789)
+- Fixed use of `rand()` without a parameter in math function [#794](https://github.com/smarty-php/smarty/issues/794)
+- Fixed unselected year/month/day not working in html_select_date [#395](https://github.com/smarty-php/smarty/issues/395)
+
+## [4.2.0] - 2022-08-01
+
+### Fixed
+- Fixed problems with smarty_mb_str_replace [#549](https://github.com/smarty-php/smarty/issues/549)
+- Fixed second parameter of unescape modifier not working [#777](https://github.com/smarty-php/smarty/issues/777)
+
+### Changed
+- Updated HTML of the debug template [#599](https://github.com/smarty-php/smarty/pull/599)
+
+## [4.1.1] - 2022-05-17
+
+### Security
+- Prevent PHP injection through malicious block name or include file name. This addresses CVE-2022-29221
+
+### Fixed
+- Exclude docs and demo from export and composer [#751](https://github.com/smarty-php/smarty/pull/751)
+- PHP 8.1 deprecation notices in demo/plugins/cacheresource.pdo.php [#706](https://github.com/smarty-php/smarty/issues/706)
+- PHP 8.1 deprecation notices in truncate modifier [#699](https://github.com/smarty-php/smarty/issues/699)
+- Math equation `max(x, y)` didn't work anymore [#721](https://github.com/smarty-php/smarty/issues/721)
+- Fix PHP 8.1 deprecated warning when calling rtrim [#743](https://github.com/smarty-php/smarty/pull/743)
+- PHP 8.1: fix deprecation in escape modifier [#727](https://github.com/smarty-php/smarty/pull/727)
+
+## [4.1.0] - 2022-02-06
+
+### Added
+- PHP8.1 compatibility [#713](https://github.com/smarty-php/smarty/pull/713)
+
+## [4.0.4] - 2022-01-18
+
+### Fixed
+- Fixed illegal characters bug in math function security check [#702](https://github.com/smarty-php/smarty/issues/702)
+
+## [4.0.3] - 2022-01-10
+
+### Security
+- Prevent evasion of the `static_classes` security policy. This addresses CVE-2021-21408
+
 ## [4.0.2] - 2022-01-10
 
 ### Security

README.md

@@ -7,7 +7,7 @@ Smarty is a template engine for PHP, facilitating the separation of presentation
 Read the [documentation](https://smarty-php.github.io/smarty/) to find out how to use it. 
 
 ## Requirements
-Smarty can be run with PHP 7.1 to PHP 8.0.
+Smarty can be run with PHP 7.1 to PHP 8.1.
 
 ## Installation
 Smarty versions 3.1.11 or later can be installed with [Composer](https://getcomposer.org/).

SECURITY.md

@@ -2,7 +2,7 @@
 
 ## Supported Versions
 
-Smarty currently supports the latest minor version of Smarty 3 and Smarty 4. (Smarty 4 has not been released yet.)
+Smarty currently supports the latest minor version of Smarty 3 and Smarty 4.
 
 | Version | Supported          |
 | ------- | ------------------ |

demo/plugins/cacheresource.pdo.php

@@ -196,7 +196,7 @@ class Smarty_CacheResource_Pdo extends Smarty_CacheResource_Custom
      * @return void
      * @access protected
      */
-    protected function fetch($id, $name, $cache_id = null, $compile_id = null, &$content, &$mtime)
+    protected function fetch($id, $name, $cache_id, $compile_id, &$content, &$mtime)
     {
         $stmt = $this->getFetchStatement($this->fetchColumns, $id, $cache_id, $compile_id);
         $stmt->execute();
@@ -244,7 +244,7 @@ class Smarty_CacheResource_Pdo extends Smarty_CacheResource_Custom
      * @return boolean success
      * @access protected
      */
-    protected function save($id, $name, $cache_id = null, $compile_id = null, $exp_time, $content)
+    protected function save($id, $name, $cache_id, $compile_id, $exp_time, $content)
     {
         $stmt = $this->pdo->prepare($this->insertStatement);
         $stmt->bindValue('id', $id);

docker-compose.yml

@@ -0,0 +1,40 @@
+version: "2"
+services:
+  base:
+    build:
+      context: .
+      dockerfile: ./utilities/testrunners/php71/Dockerfile
+    volumes:
+      - .:/app
+    working_dir: /app
+    entrypoint: sh ./utilities/testrunners/run-test.sh
+  php71:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php71/Dockerfile
+  php72:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php72/Dockerfile
+  php73:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php73/Dockerfile
+  php74:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php74/Dockerfile
+  php80:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php80/Dockerfile
+  php81:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php81/Dockerfile

docs/getting-started.md

@@ -2,7 +2,7 @@ What is Smarty?
 ==============
 
 ## Requirements
-Smarty can be run with PHP 7.1 to PHP 8.0.
+Smarty can be run with PHP 7.1 to PHP 8.1.
 
 ## Installation
 Smarty versions 3.1.11 or later can be installed with [Composer](https://getcomposer.org/).

docs/programmers/api-variables/variable-escape-html.md

@@ -3,7 +3,7 @@
 
 Setting `$escape_html` to TRUE will escape all template variable output
 by wrapping it in
-`htmlspecialchars({$output}, ENT_QUOTES, SMARTY_RESOURCE_CHAR_SET);`,
+`htmlspecialchars({$output}, ENT_QUOTES, $char_set);`,
 which is the same as `{$variable|escape:"html"}`.
 
 Template designers can choose to selectively disable this feature by

docs/programmers/charset.md

@@ -5,10 +5,10 @@ Charset Encoding {#charset.encoding}
 ================
 
 There are a variety of encodings for textual data, ISO-8859-1 (Latin1)
-and UTF-8 being the most popular. Unless specified otherwise with the
+and UTF-8 being the most popular. Unless you change `Smarty::$_CHARSET`, 
-`SMARTY_RESOURCE_CHAR_SET` constant, Smarty recognizes `UTF-8` as the
+Smarty recognizes `UTF-8` as the internal charset if 
-internal charset if [Multibyte String](https://www.php.net/mbstring) is
+[Multibyte String](https://www.php.net/mbstring) is available, 
-available, `ISO-8859-1` if not.
+`ISO-8859-1` if not.
 
 > **Note**
 >
@@ -36,8 +36,9 @@ available, `ISO-8859-1` if not.
     if (function_exists('mb_internal_charset')) {
       mb_internal_charset('EUC-JP');
     }
-    define('SMARTY_RESOURCE_CHAR_SET', 'EUC-JP');
+
     require_once 'libs/Smarty.class.php';
+    Smarty::$_CHARSET = 'EUC-JP';
     $smarty = new Smarty();
       
      

lexer/smarty_internal_templateparser.y

@@ -747,6 +747,9 @@ value(res)       ::= doublequoted_with_quotes(s). {
 
 
 value(res)    ::= varindexed(vi) DOUBLECOLON static_class_access(r). {
+    if ($this->security && $this->security->static_classes !== array()) {
+        $this->compiler->trigger_template_error('dynamic static class not allowed by security setting');
+    }
     $prefixVar = $this->compiler->getNewPrefixVariable();
     if (vi['var'] === '\'smarty\'') {
         $this->compiler->appendPrefixCode("<?php {$prefixVar} = ". $this->compiler->compileTag('private_special_variable',array(),vi['smarty_internal_index']).';?>');

libs/Smarty.class.php

@@ -98,7 +98,7 @@ class Smarty extends Smarty_Internal_TemplateBase
     /**
      * smarty version
      */
-    const SMARTY_VERSION = '4.0.2';
+    const SMARTY_VERSION = '4.2.1';
     /**
      * define variable scopes
      */
@@ -867,7 +867,7 @@ class Smarty extends Smarty_Internal_TemplateBase
                 $this->plugins_dir = (array)$this->plugins_dir;
             }
             foreach ($this->plugins_dir as $k => $v) {
-                $this->plugins_dir[ $k ] = $this->_realpath(rtrim($v, '/\\') . DIRECTORY_SEPARATOR, true);
+                $this->plugins_dir[ $k ] = $this->_realpath(rtrim($v ?? '', '/\\') . DIRECTORY_SEPARATOR, true);
             }
             $this->_cache[ 'plugin_files' ] = array();
             $this->_pluginsDirNormalized = true;
@@ -1345,7 +1345,7 @@ class Smarty extends Smarty_Internal_TemplateBase
      */
     private function _normalizeDir($dirName, $dir)
     {
-        $this->{$dirName} = $this->_realpath(rtrim($dir, "/\\") . DIRECTORY_SEPARATOR, true);
+        $this->{$dirName} = $this->_realpath(rtrim($dir ?? '', "/\\") . DIRECTORY_SEPARATOR, true);
     }
 
     /**
@@ -1367,7 +1367,7 @@ class Smarty extends Smarty_Internal_TemplateBase
         }
         foreach ($dir as $k => $v) {
             if (!isset($processed[ $k ])) {
-                $dir[ $k ] = $v = $this->_realpath(rtrim($v, "/\\") . DIRECTORY_SEPARATOR, true);
+                $dir[ $k ] = $v = $this->_realpath(rtrim($v ?? '', "/\\") . DIRECTORY_SEPARATOR, true);
                 $processed[ $k ] = true;
             }
         }

libs/debug.tpl

@@ -1,9 +1,9 @@
 {capture name='_smarty_debug' assign=debug_output}
-    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+    <!DOCTYPE html>
-    <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
+    <html lang="en">
     <head>
         <title>Smarty Debug Console</title>
-        <style type="text/css">
+        <style>
             {literal}
             body, h1, h2, h3, td, th, p {
                 font-family: sans-serif;
@@ -31,6 +31,7 @@
                 padding: 2px;
                 border-top: 1px solid black;
             }
+
             h3 {
                 text-align: left;
                 font-weight: bold;
@@ -67,11 +68,11 @@
                 color: green;
             }
 
-            .odd {
+            tr:nth-child(odd) {
                 background-color: #eeeeee;
             }
 
-            .even {
+            tr:nth-child(even) {
                 background-color: #fafafa;
             }
 
@@ -84,13 +85,16 @@
                 color: black;
                 font-weight: bold;
             }
+
             #blue h3 {
                 color: blue;
             }
+
             #normal div {
                 color: black;
                 font-weight: normal;
             }
+
             #table_assigned_vars th {
                 color: blue;
                 font-weight: bold;
@@ -99,7 +103,6 @@
             #table_config_vars th {
                 color: maroon;
             }
-
             {/literal}
         </style>
     </head>
@@ -112,11 +115,11 @@
         <h2>included templates &amp; config files (load time in seconds)</h2>
         <div>
             {foreach $template_data as $template}
-                <font color=brown>{$template.name}</font>
+                <span style="color: brown;">{$template.name}</span>
-                <br />&nbsp;&nbsp;<span class="exectime">
+                <br>&nbsp;&nbsp;<span class="exectime">
                 (compile {$template['compile_time']|string_format:"%.5f"}) (render {$template['render_time']|string_format:"%.5f"}) (cache {$template['cache_time']|string_format:"%.5f"})
                  </span>
-                <br />
+                <br>
             {/foreach}
         </div>
     {/if}
@@ -125,13 +128,22 @@
 
     <table id="table_assigned_vars">
         {foreach $assigned_vars as $vars}
-            <tr class="{if $vars@iteration % 2 eq 0}odd{else}even{/if}">
+            <tr>
-                <td><h3><font color=blue>${$vars@key}</font></h3>
+                <td>
-                    {if isset($vars['nocache'])}<b>Nocache</b><br />{/if}
+                    <h3 style="color: blue;">${$vars@key}</h3>
-                    {if isset($vars['scope'])}<b>Origin:</b> {$vars['scope']|debug_print_var nofilter}{/if}
+                    {if isset($vars['nocache'])}<strong>Nocache</strong><br>{/if}
+                    {if isset($vars['scope'])}<strong>Origin:</strong> {$vars['scope']|debug_print_var nofilter}{/if}
+                </td>
+                <td>
+                    <h3>Value</h3>
+                    {$vars['value']|debug_print_var:10:80 nofilter}
+                </td>
+                <td>
+                    {if isset($vars['attributes'])}
+                        <h3>Attributes</h3>
+                        {$vars['attributes']|debug_print_var nofilter}
+                    {/if}
                 </td>
-                <td><h3>Value</h3>{$vars['value']|debug_print_var:10:80 nofilter}</td>
-                <td>{if isset($vars['attributes'])}<h3>Attributes</h3>{$vars['attributes']|debug_print_var nofilter} {/if}</td>
          {/foreach}
     </table>
 
@@ -139,11 +151,14 @@
 
     <table id="table_config_vars">
         {foreach $config_vars as $vars}
-            <tr class="{if $vars@iteration % 2 eq 0}odd{else}even{/if}">
+            <tr>
-                <td><h3><font color=blue>#{$vars@key}#</font></h3>
+                <td>
-                    {if isset($vars['scope'])}<b>Origin:</b> {$vars['scope']|debug_print_var nofilter}{/if}
+                    <h3 style="color: blue;">#{$vars@key}#</h3>
+                    {if isset($vars['scope'])}<strong>Origin:</strong> {$vars['scope']|debug_print_var nofilter}{/if}
+                </td>
+                <td>
+                    {$vars['value']|debug_print_var:10:80 nofilter}
                 </td>
-                <td>{$vars['value']|debug_print_var:10:80 nofilter}</td>
             </tr>
         {/foreach}
 

libs/plugins/function.html_select_date.php

@@ -101,6 +101,7 @@ function smarty_function_html_select_date($params, Smarty_Internal_Template $tem
     $field_separator = "\n";
     $option_separator = "\n";
     $time = null;
+
     // $all_empty = null;
     // $day_empty = null;
     // $month_empty = null;
@@ -113,17 +114,7 @@ function smarty_function_html_select_date($params, Smarty_Internal_Template $tem
     foreach ($params as $_key => $_value) {
         switch ($_key) {
             case 'time':
-                if (!is_array($_value) && $_value !== null) {
+                $$_key = $_value; // we'll handle conversion below
-                    $template->_checkPlugins(
-                        array(
-                            array(
-                                'function' => 'smarty_make_timestamp',
-                                'file'     => SMARTY_PLUGINS_DIR . 'shared.make_timestamp.php'
-                            )
-                        )
-                    );
-                    $time = smarty_make_timestamp($_value);
-                }
                 break;
             case 'month_names':
                 if (is_array($_value) && count($_value) === 12) {
@@ -178,43 +169,59 @@ function smarty_function_html_select_date($params, Smarty_Internal_Template $tem
     }
     // Note: date() is faster than strftime()
     // Note: explode(date()) is faster than date() date() date()
-    if (isset($params[ 'time' ]) && is_array($params[ 'time' ])) {
+
-        if (isset($params[ 'time' ][ $prefix . 'Year' ])) {
+    if (isset($time) && is_array($time)) {
+        if (isset($time[$prefix . 'Year'])) {
             // $_REQUEST[$field_array] given
-            foreach (array(
+            foreach ([
-                'Y' => 'Year',
+                         'Y' => 'Year',
-                'm' => 'Month',
+                         'm' => 'Month',
-                'd' => 'Day'
+                         'd' => 'Day'
-            ) as $_elementKey => $_elementName) {
+                     ] as $_elementKey => $_elementName) {
                 $_variableName = '_' . strtolower($_elementName);
                 $$_variableName =
-                    isset($params[ 'time' ][ $prefix . $_elementName ]) ? $params[ 'time' ][ $prefix . $_elementName ] :
+                    isset($time[$prefix . $_elementName]) ? $time[$prefix . $_elementName] :
                         date($_elementKey);
             }
-        } elseif (isset($params[ 'time' ][ $field_array ][ $prefix . 'Year' ])) {
+        } elseif (isset($time[$field_array][$prefix . 'Year'])) {
             // $_REQUEST given
-            foreach (array(
+            foreach ([
-                'Y' => 'Year',
+                         'Y' => 'Year',
-                'm' => 'Month',
+                         'm' => 'Month',
-                'd' => 'Day'
+                         'd' => 'Day'
-            ) as $_elementKey => $_elementName) {
+                     ] as $_elementKey => $_elementName) {
                 $_variableName = '_' . strtolower($_elementName);
-                $$_variableName = isset($params[ 'time' ][ $field_array ][ $prefix . $_elementName ]) ?
+                $$_variableName = isset($time[$field_array][$prefix . $_elementName]) ?
-                    $params[ 'time' ][ $field_array ][ $prefix . $_elementName ] : date($_elementKey);
+                    $time[$field_array][$prefix . $_elementName] : date($_elementKey);
             }
         } else {
             // no date found, use NOW
-            list($_year, $_month, $_day) = $time = explode('-', date('Y-m-d'));
+            [$_year, $_month, $_day] = explode('-', date('Y-m-d'));
         }
+    } elseif (isset($time) && preg_match("/(\d*)-(\d*)-(\d*)/", $time, $matches)) {
+        $_year = $_month = $_day = null;
+        if ($matches[1] > '') $_year = (int) $matches[1];
+        if ($matches[2] > '') $_month = (int) $matches[2];
+        if ($matches[3] > '') $_day = (int) $matches[3];
     } elseif ($time === null) {
         if (array_key_exists('time', $params)) {
-            $_year = $_month = $_day = $time = null;
+            $_year = $_month = $_day = null;
         } else {
-            list($_year, $_month, $_day) = $time = explode('-', date('Y-m-d'));
+            [$_year, $_month, $_day] = explode('-', date('Y-m-d'));
         }
     } else {
-        list($_year, $_month, $_day) = $time = explode('-', date('Y-m-d', $time));
+        $template->_checkPlugins(
+            array(
+                array(
+                    'function' => 'smarty_make_timestamp',
+                    'file'     => SMARTY_PLUGINS_DIR . 'shared.make_timestamp.php'
+                )
+            )
+        );
+        $time = smarty_make_timestamp($time);
+        [$_year, $_month, $_day] = explode('-', date('Y-m-d', $time));
     }
+
     // make syntax "+N" or "-N" work with $start_year and $end_year
     // Note preg_match('!^(\+|\-)\s*(\d+)$!', $end_year, $match) is slower than trim+substr
     foreach (array(

libs/plugins/function.mailto.php

@@ -48,8 +48,13 @@
  */
 function smarty_function_mailto($params)
 {
-    static $_allowed_encoding =
+    static $_allowed_encoding = [
-        array('javascript' => true, 'javascript_charcode' => true, 'hex' => true, 'none' => true);
+        'javascript' => true,
+        'javascript_charcode' => true,
+        'hex' => true,
+        'none' => true
+    ];
+
     $extra = '';
     if (empty($params[ 'address' ])) {
         trigger_error("mailto: missing 'address' parameter", E_USER_WARNING);
@@ -57,19 +62,19 @@ function smarty_function_mailto($params)
     } else {
         $address = $params[ 'address' ];
     }
+
     $text = $address;
+
     // netscape and mozilla do not decode %40 (@) in BCC field (bug?)
     // so, don't encode it.
-    $search = array('%40', '%2C');
+    $mail_parms = [];
-    $replace = array('@', ',');
-    $mail_parms = array();
     foreach ($params as $var => $value) {
         switch ($var) {
             case 'cc':
             case 'bcc':
             case 'followupto':
                 if (!empty($value)) {
-                    $mail_parms[] = $var . '=' . str_replace($search, $replace, rawurlencode($value));
+                    $mail_parms[] = $var . '=' . str_replace(['%40', '%2C'], ['@', ','], rawurlencode($value));
                 }
                 break;
             case 'subject':
@@ -83,6 +88,7 @@ function smarty_function_mailto($params)
             default:
         }
     }
+
     if ($mail_parms) {
         $address .= '?' . join('&', $mail_parms);
     }
@@ -94,19 +100,21 @@ function smarty_function_mailto($params)
         );
         return;
     }
+
+    $string = '<a href="mailto:' . htmlspecialchars($address, ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401, Smarty::$_CHARSET) .
+        '" ' . $extra . '>' . htmlspecialchars($text, ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401, Smarty::$_CHARSET) . '</a>';
+
     if ($encode === 'javascript') {
-	    $string = '<a href="mailto:' . $address . '" ' . $extra . '>' . $text . '</a>';
         $js_encode = '';
         for ($x = 0, $_length = strlen($string); $x < $_length; $x++) {
             $js_encode .= '%' . bin2hex($string[ $x ]);
         }
         return '<script type="text/javascript">document.write(unescape(\'' . $js_encode . '\'))</script>';
     } elseif ($encode === 'javascript_charcode') {
-        $string = '<a href="mailto:' . $address . '" ' . $extra . '>' . $text . '</a>';
         for ($x = 0, $_length = strlen($string); $x < $_length; $x++) {
             $ord[] = ord($string[ $x ]);
         }
-	    return '<script type="text/javascript">document.write(String.fromCharCode(' . implode(',', $ord) . '))</script>';
+        return '<script type="text/javascript">document.write(String.fromCharCode(' . implode(',', $ord) . '))</script>';
     } elseif ($encode === 'hex') {
         preg_match('!^(.*)(\?.*)$!', $address, $match);
         if (!empty($match[ 2 ])) {
@@ -129,6 +137,6 @@ function smarty_function_mailto($params)
         return '<a href="' . $mailto . $address_encode . '" ' . $extra . '>' . $text_encode . '</a>';
     } else {
         // no encoding
-        return '<a href="mailto:' . $address . '" ' . $extra . '>' . $text . '</a>';
+        return $string;
     }
 }

libs/plugins/function.math.php

@@ -69,8 +69,8 @@ function smarty_function_math($params, $template)
     // Adapted from https://www.php.net/manual/en/function.eval.php#107377
     $number = '(?:\d+(?:[,.]\d+)?|pi|π)'; // What is a number
     $functionsOrVars = '((?:0x[a-fA-F0-9]+)|([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*))';
-    $operators = '[+\/*\^%-]'; // Allowed math operators
+    $operators = '[,+\/*\^%-]'; // Allowed math operators
-    $regexp = '/^(('.$number.'|'.$functionsOrVars.'|('.$functionsOrVars.'\s*\((?1)+\)|\((?1)+\)))(?:'.$operators.'(?2))?)+$/';
+    $regexp = '/^(('.$number.'|'.$functionsOrVars.'|('.$functionsOrVars.'\s*\((?1)*\)|\((?1)*\)))(?:'.$operators.'(?1))?)+$/';
 
     if (!preg_match($regexp, $equation)) {
         trigger_error("math: illegal characters", E_USER_WARNING);

libs/plugins/modifier.capitalize.php

@@ -22,6 +22,8 @@
  */
 function smarty_modifier_capitalize($string, $uc_digits = false, $lc_rest = false)
 {
+	$string = (string) $string;
+
     if (Smarty::$_MBSTRING) {
         if ($lc_rest) {
             // uppercase (including hyphenated words)

libs/plugins/modifier.escape.php

@@ -29,6 +29,9 @@ function smarty_modifier_escape($string, $esc_type = 'html', $char_set = null, $
     if (!$char_set) {
         $char_set = Smarty::$_CHARSET;
     }
+
+    $string = (string)$string;
+
     switch ($esc_type) {
         case 'html':
             if ($_double_encode) {

libs/plugins/modifier.explode.php

@@ -0,0 +1,25 @@
+<?php
+/**
+ * Smarty plugin
+ *
+ * @package    Smarty
+ * @subpackage PluginsModifier
+ */
+
+/**
+ * Smarty explode modifier plugin
+ * Type:     modifier
+ * Name:     explode
+ * Purpose:  split a string by a string
+ *
+ * @param string   $separator
+ * @param string   $string
+ * @param int|null $limit
+ *
+ * @return array
+ */
+function smarty_modifier_explode($separator, $string, ?int $limit = null)
+{
+    // provide $string default to prevent deprecation errors in PHP >=8.1
+    return explode($separator, $string ?? '', $limit ?? PHP_INT_MAX);
+}

libs/plugins/modifier.number_format.php

@@ -0,0 +1,26 @@
+<?php
+/**
+ * Smarty plugin
+ *
+ * @package    Smarty
+ * @subpackage PluginsModifier
+ */
+
+/**
+ * Smarty number_format modifier plugin
+ * Type:     modifier
+ * Name:     number_format
+ * Purpose:  Format a number with grouped thousands
+ *
+ * @param float|null  $num
+ * @param int         $decimals
+ * @param string|null $decimal_separator
+ * @param string|null $thousands_separator
+ *
+ * @return string
+ */
+function smarty_modifier_number_format(?float $num, int $decimals = 0, ?string $decimal_separator = ".", ?string $thousands_separator = ",")
+{
+    // provide $num default to prevent deprecation errors in PHP >=8.1
+    return number_format($num ?? 0.0, $decimals, $decimal_separator, $thousands_separator);
+}

libs/plugins/modifier.truncate.php

@@ -42,8 +42,8 @@ function smarty_modifier_truncate($string, $length = 80, $etc = '...', $break_wo
             if (!$middle) {
                 return mb_substr($string, 0, $length, Smarty::$_CHARSET) . $etc;
             }
-            return mb_substr($string, 0, $length / 2, Smarty::$_CHARSET) . $etc .
+            return mb_substr($string, 0, intval($length / 2), Smarty::$_CHARSET) . $etc .
-                   mb_substr($string, -$length / 2, $length, Smarty::$_CHARSET);
+                   mb_substr($string, -intval($length / 2), $length, Smarty::$_CHARSET);
         }
         return $string;
     }
@@ -56,7 +56,7 @@ function smarty_modifier_truncate($string, $length = 80, $etc = '...', $break_wo
         if (!$middle) {
             return substr($string, 0, $length) . $etc;
         }
-        return substr($string, 0, $length / 2) . $etc . substr($string, -$length / 2);
+        return substr($string, 0, intval($length / 2)) . $etc . substr($string, -intval($length / 2));
     }
     return $string;
 }

libs/plugins/modifiercompiler.escape.php

@@ -42,10 +42,10 @@ function smarty_modifiercompiler_escape($params, Smarty_Internal_TemplateCompile
         switch ($esc_type) {
             case 'html':
                 if ($_double_encode) {
-                    return 'htmlspecialchars(' . $params[ 0 ] . ', ENT_QUOTES, ' . var_export($char_set, true) . ', ' .
+                    return 'htmlspecialchars((string)' . $params[ 0 ] . ', ENT_QUOTES, ' . var_export($char_set, true) . ', ' .
                            var_export($double_encode, true) . ')';
                 } elseif ($double_encode) {
-                    return 'htmlspecialchars(' . $params[ 0 ] . ', ENT_QUOTES, ' . var_export($char_set, true) . ')';
+                    return 'htmlspecialchars((string)' . $params[ 0 ] . ', ENT_QUOTES, ' . var_export($char_set, true) . ')';
                 } else {
                     // fall back to modifier.escape.php
                 }
@@ -54,12 +54,12 @@ function smarty_modifiercompiler_escape($params, Smarty_Internal_TemplateCompile
                 if (Smarty::$_MBSTRING) {
                     if ($_double_encode) {
                         // php >=5.2.3 - go native
-                        return 'mb_convert_encoding(htmlspecialchars(' . $params[ 0 ] . ', ENT_QUOTES, ' .
+                        return 'mb_convert_encoding(htmlspecialchars((string)' . $params[ 0 ] . ', ENT_QUOTES, ' .
                                var_export($char_set, true) . ', ' . var_export($double_encode, true) .
                                '), "HTML-ENTITIES", ' . var_export($char_set, true) . ')';
                     } elseif ($double_encode) {
                         // php <5.2.3 - only handle double encoding
-                        return 'mb_convert_encoding(htmlspecialchars(' . $params[ 0 ] . ', ENT_QUOTES, ' .
+                        return 'mb_convert_encoding(htmlspecialchars((string)' . $params[ 0 ] . ', ENT_QUOTES, ' .
                                var_export($char_set, true) . '), "HTML-ENTITIES", ' . var_export($char_set, true) . ')';
                     } else {
                         // fall back to modifier.escape.php
@@ -68,26 +68,26 @@ function smarty_modifiercompiler_escape($params, Smarty_Internal_TemplateCompile
                 // no MBString fallback
                 if ($_double_encode) {
                     // php >=5.2.3 - go native
-                    return 'htmlentities(' . $params[ 0 ] . ', ENT_QUOTES, ' . var_export($char_set, true) . ', ' .
+                    return 'htmlentities((string)' . $params[ 0 ] . ', ENT_QUOTES, ' . var_export($char_set, true) . ', ' .
                            var_export($double_encode, true) . ')';
                 } elseif ($double_encode) {
                     // php <5.2.3 - only handle double encoding
-                    return 'htmlentities(' . $params[ 0 ] . ', ENT_QUOTES, ' . var_export($char_set, true) . ')';
+                    return 'htmlentities((string)' . $params[ 0 ] . ', ENT_QUOTES, ' . var_export($char_set, true) . ')';
                 } else {
                     // fall back to modifier.escape.php
                 }
             // no break
             case 'url':
-                return 'rawurlencode(' . $params[ 0 ] . ')';
+                return 'rawurlencode((string)' . $params[ 0 ] . ')';
             case 'urlpathinfo':
-                return 'str_replace("%2F", "/", rawurlencode(' . $params[ 0 ] . '))';
+                return 'str_replace("%2F", "/", rawurlencode((string)' . $params[ 0 ] . '))';
             case 'quotes':
                 // escape unescaped single quotes
-                return 'preg_replace("%(?<!\\\\\\\\)\'%", "\\\'",' . $params[ 0 ] . ')';
+                return 'preg_replace("%(?<!\\\\\\\\)\'%", "\\\'", (string)' . $params[ 0 ] . ')';
             case 'javascript':
                 // escape quotes and backslashes, newlines, etc.
                 // see https://html.spec.whatwg.org/multipage/scripting.html#restrictions-for-contents-of-script-elements
-                return 'strtr(' .
+                return 'strtr((string)' .
                        $params[ 0 ] .
                        ', array("\\\\" => "\\\\\\\\", "\'" => "\\\\\'", "\"" => "\\\\\"", "\\r" => "\\\\r", "\\n" => "\\\n", "</" => "<\/", "<!--" => "<\!--", "<s" => "<\s", "<S" => "<\S" ))';
         }

libs/plugins/modifiercompiler.unescape.php

@@ -14,20 +14,28 @@
  * @author Rodney Rehm
  *
  * @param array $params parameters
+ * @param Smarty_Internal_TemplateCompilerBase $compiler
  *
  * @return string with compiled code
  */
-function smarty_modifiercompiler_unescape($params)
+function smarty_modifiercompiler_unescape($params, Smarty_Internal_TemplateCompilerBase $compiler)
 {
-    if (!isset($params[ 1 ])) {
+    $compiler->template->_checkPlugins(
-        $params[ 1 ] = 'html';
+        array(
-    }
+            array(
+                'function' => 'smarty_literal_compiler_param',
+                'file'     => SMARTY_PLUGINS_DIR . 'shared.literal_compiler_param.php'
+            )
+        )
+    );
+
+    $esc_type = smarty_literal_compiler_param($params, 1, 'html');
+
     if (!isset($params[ 2 ])) {
         $params[ 2 ] = '\'' . addslashes(Smarty::$_CHARSET) . '\'';
-    } else {
-        $params[ 2 ] = "'{$params[ 2 ]}'";
     }
-    switch (trim($params[ 1 ], '"\'')) {
+
+    switch ($esc_type) {
         case 'entity':
         case 'htmlall':
             if (Smarty::$_MBSTRING) {

libs/plugins/modifiercompiler.upper.php

@@ -21,8 +21,8 @@
 function smarty_modifiercompiler_upper($params)
 {
     if (Smarty::$_MBSTRING) {
-        return 'mb_strtoupper(' . $params[ 0 ] . ', \'' . addslashes(Smarty::$_CHARSET) . '\')';
+        return 'mb_strtoupper(' . $params[ 0 ] . ' ?? \'\', \'' . addslashes(Smarty::$_CHARSET) . '\')';
     }
     // no MBString fallback
-    return 'strtoupper(' . $params[ 0 ] . ')';
+    return 'strtoupper(' . $params[ 0 ] . ' ?? \'\')';
 }

libs/plugins/shared.mb_str_replace.php

@@ -44,9 +44,43 @@ if (!function_exists('smarty_mb_str_replace')) {
                 }
             }
         } else {
-            $parts = mb_split(preg_quote($search), $subject) ?: array();
+            $mb_reg_charset = mb_regex_encoding();
+            // Check if mbstring regex is using UTF-8
+            $reg_is_unicode = !strcasecmp($mb_reg_charset, "UTF-8");
+            if(!$reg_is_unicode) {
+                // ...and set to UTF-8 if not
+                mb_regex_encoding("UTF-8");
+            }
+
+            // See if charset used by Smarty is matching one used by regex...
+            $current_charset = mb_regex_encoding();
+            $convert_result = (bool)strcasecmp(Smarty::$_CHARSET, $current_charset);
+            if($convert_result) {
+                // ...convert to it if not.
+                $subject = mb_convert_encoding($subject, $current_charset, Smarty::$_CHARSET);
+                $search = mb_convert_encoding($search, $current_charset, Smarty::$_CHARSET);
+                $replace = mb_convert_encoding($replace, $current_charset, Smarty::$_CHARSET);
+            }
+
+            $parts = mb_split(preg_quote($search), $subject ?? "") ?: array();
+            // If original regex encoding was not unicode...
+            if(!$reg_is_unicode) {
+                // ...restore original regex encoding to avoid breaking the system.
+                mb_regex_encoding($mb_reg_charset);
+            }
+            if($parts === false) {
+                // This exception is thrown if call to mb_split failed.
+                // Usually it happens, when $search or $replace are not valid for given mb_regex_encoding().
+                // There may be other cases for it to fail, please file an issue if you find a reproducible one.
+                throw new SmartyException("Source string is not a valid $current_charset sequence (probably)");
+            }
+
             $count = count($parts) - 1;
             $subject = implode($replace, $parts);
+            // Convert results back to charset used by Smarty, if needed.
+            if($convert_result) {
+                $subject = mb_convert_encoding($subject, Smarty::$_CHARSET, $current_charset);
+            }
         }
         return $subject;
     }

libs/sysplugins/smarty_internal_cacheresource_file.php

@@ -196,8 +196,8 @@ class Smarty_Internal_CacheResource_File extends Smarty_CacheResource
      */
     public function hasLock(Smarty $smarty, Smarty_Template_Cached $cached)
     {
-        clearstatcache(true, $cached->lock_id);
+        clearstatcache(true, $cached->lock_id ?? '');
-        if (is_file($cached->lock_id)) {
+        if (null !== $cached->lock_id && is_file($cached->lock_id)) {
             $t = filemtime($cached->lock_id);
             return $t && (time() - $t < $smarty->locking_timeout);
         } else {

libs/sysplugins/smarty_internal_compile_block.php

@@ -125,7 +125,7 @@ class Smarty_Internal_Compile_Blockclose extends Smarty_Internal_Compile_Shared_
         // setup buffer for template function code
         $compiler->parser->current_buffer = new Smarty_Internal_ParseTree_Template();
         $output = "<?php\n";
-        $output .= "/* {block {$_name}} */\n";
+        $output .= $compiler->cStyleComment(" {block {$_name}} ") . "\n";
         $output .= "class {$_className} extends Smarty_Internal_Block\n";
         $output .= "{\n";
         foreach ($_block as $property => $value) {
@@ -155,7 +155,7 @@ class Smarty_Internal_Compile_Blockclose extends Smarty_Internal_Compile_Shared_
         }
         $output .= "}\n";
         $output .= "}\n";
-        $output .= "/* {/block {$_name}} */\n\n";
+        $output .= $compiler->cStyleComment(" {/block {$_name}} ") . "\n\n";
         $output .= "?>\n";
         $compiler->parser->current_buffer->append_subtree(
             $compiler->parser,

libs/sysplugins/smarty_internal_compile_function.php

@@ -134,7 +134,7 @@ class Smarty_Internal_Compile_Functionclose extends Smarty_Internal_CompileBase
         if ($compiler->template->compiled->has_nocache_code) {
             $compiler->parent_compiler->tpl_function[ $_name ][ 'call_name_caching' ] = $_funcNameCaching;
             $output = "<?php\n";
-            $output .= "/* {$_funcNameCaching} */\n";
+            $output .= $compiler->cStyleComment(" {$_funcNameCaching} ") . "\n";
             $output .= "if (!function_exists('{$_funcNameCaching}')) {\n";
             $output .= "function {$_funcNameCaching} (Smarty_Internal_Template \$_smarty_tpl,\$params) {\n";
             $output .= "ob_start();\n";
@@ -157,9 +157,9 @@ class Smarty_Internal_Compile_Functionclose extends Smarty_Internal_CompileBase
             $output = "<?php echo \"/*%%SmartyNocache:{$compiler->template->compiled->nocache_hash}%%*/<?php ";
             $output .= "\\\$_smarty_tpl->smarty->ext->_tplFunction->restoreTemplateVariables(\\\$_smarty_tpl, '{$_name}');?>\n";
             $output .= "/*/%%SmartyNocache:{$compiler->template->compiled->nocache_hash}%%*/\";\n?>";
-            $output .= "<?php echo str_replace('{$compiler->template->compiled->nocache_hash}', \$_smarty_tpl->compiled->nocache_hash, ob_get_clean());\n";
+            $output .= "<?php echo str_replace('{$compiler->template->compiled->nocache_hash}', \$_smarty_tpl->compiled->nocache_hash ?? '', ob_get_clean());\n";
             $output .= "}\n}\n";
-            $output .= "/*/ {$_funcName}_nocache */\n\n";
+            $output .= $compiler->cStyleComment("/ {$_funcName}_nocache ") . "\n\n";
             $output .= "?>\n";
             $compiler->parser->current_buffer->append_subtree(
                 $compiler->parser,
@@ -179,7 +179,7 @@ class Smarty_Internal_Compile_Functionclose extends Smarty_Internal_CompileBase
         }
         $compiler->parent_compiler->tpl_function[ $_name ][ 'call_name' ] = $_funcName;
         $output = "<?php\n";
-        $output .= "/* {$_funcName} */\n";
+        $output .= $compiler->cStyleComment(" {$_funcName} ") . "\n";
         $output .= "if (!function_exists('{$_funcName}')) {\n";
         $output .= "function {$_funcName}(Smarty_Internal_Template \$_smarty_tpl,\$params) {\n";
         $output .= $_paramsCode;
@@ -196,7 +196,7 @@ class Smarty_Internal_Compile_Functionclose extends Smarty_Internal_CompileBase
         );
         $compiler->parser->current_buffer->append_subtree($compiler->parser, $_functionCode);
         $output = "<?php\n}}\n";
-        $output .= "/*/ {$_funcName} */\n\n";
+        $output .= $compiler->cStyleComment("/ {$_funcName} ") . "\n\n";
         $output .= "?>\n";
         $compiler->parser->current_buffer->append_subtree(
             $compiler->parser,

libs/sysplugins/smarty_internal_compile_include.php

@@ -318,14 +318,14 @@ class Smarty_Internal_Compile_Include extends Smarty_Internal_CompileBase
             }
             // get compiled code
             $compiled_code = "<?php\n\n";
-            $compiled_code .= "/* Start inline template \"{$sourceInfo}\" =============================*/\n";
+            $compiled_code .= $compiler->cStyleComment(" Start inline template \"{$sourceInfo}\" =============================") . "\n";
             $compiled_code .= "function {$tpl->compiled->unifunc} (Smarty_Internal_Template \$_smarty_tpl) {\n";
             $compiled_code .= "?>\n" . $tpl->compiler->compileTemplateSource($tpl, null, $compiler->parent_compiler);
             $compiled_code .= "<?php\n";
             $compiled_code .= "}\n?>\n";
             $compiled_code .= $tpl->compiler->postFilter($tpl->compiler->blockOrFunctionCode);
             $compiled_code .= "<?php\n\n";
-            $compiled_code .= "/* End inline template \"{$sourceInfo}\" =============================*/\n";
+            $compiled_code .= $compiler->cStyleComment(" End inline template \"{$sourceInfo}\" =============================") . "\n";
             $compiled_code .= '?>';
             unset($tpl->compiler);
             if ($tpl->compiled->has_nocache_code) {

libs/sysplugins/smarty_internal_compile_insert.php

@@ -93,7 +93,7 @@ class Smarty_Internal_Compile_Insert extends Smarty_Internal_CompileBase
                 }
                 if (!empty($_dir)) {
                     foreach ((array)$_dir as $_script_dir) {
-                        $_script_dir = rtrim($_script_dir, '/\\') . DIRECTORY_SEPARATOR;
+                        $_script_dir = rtrim($_script_dir ?? '', '/\\') . DIRECTORY_SEPARATOR;
                         if (file_exists($_script_dir . $_script)) {
                             $_filepath = $_script_dir . $_script;
                             break;

libs/sysplugins/smarty_internal_compile_private_print_expression.php

@@ -93,7 +93,7 @@ class Smarty_Internal_Compile_Private_Print_Expression extends Smarty_Internal_C
                 }
                 // autoescape html
                 if ($compiler->template->smarty->escape_html) {
-                    $output = "htmlspecialchars({$output}, ENT_QUOTES, '" . addslashes(Smarty::$_CHARSET) . "')";
+                    $output = "htmlspecialchars((string) {$output}, ENT_QUOTES, '" . addslashes(Smarty::$_CHARSET) . "')";
                 }
                 // loop over registered filters
                 if (!empty($compiler->template->smarty->registered_filters[ Smarty::FILTER_VARIABLE ])) {

libs/sysplugins/smarty_internal_config_file_compiler.php

@@ -157,10 +157,12 @@ class Smarty_Internal_Config_File_Compiler
             $this->smarty->_debug->end_compile($this->template);
         }
         // template header code
-        $template_header =
+        $template_header = sprintf(
-            "<?php /* Smarty version " . Smarty::SMARTY_VERSION . ", created on " . strftime("%Y-%m-%d %H:%M:%S") .
+            "<?php /* Smarty version %s, created on %s\n         compiled from '%s' */ ?>\n",
-            "\n";
+            Smarty::SMARTY_VERSION,
-        $template_header .= "         compiled from '{$this->template->source->filepath}' */ ?>\n";
+            date("Y-m-d H:i:s"),
+            str_replace('*/', '* /' , $this->template->source->filepath)
+        );
         $code = '<?php $_smarty_tpl->smarty->ext->configLoad->_loadConfigVars($_smarty_tpl, ' .
                 var_export($this->config_data, true) . '); ?>';
         return $template_header . $this->template->smarty->ext->_codeFrame->create($this->template, $code);

libs/sysplugins/smarty_internal_runtime_codeframe.php

@@ -44,9 +44,12 @@ class Smarty_Internal_Runtime_CodeFrame
             $properties[ 'file_dependency' ] = $_template->cached->file_dependency;
             $properties[ 'cache_lifetime' ] = $_template->cache_lifetime;
         }
-        $output = "<?php\n";
+        $output = sprintf(
-        $output .= "/* Smarty version {$properties[ 'version' ]}, created on " . strftime("%Y-%m-%d %H:%M:%S") .
+			"<?php\n/* Smarty version %s, created on %s\n  from '%s' */\n\n",
-                   "\n  from '" . str_replace('*/', '* /', $_template->source->filepath) . "' */\n\n";
+            $properties[ 'version' ],
+	        date("Y-m-d H:i:s"),
+	        str_replace('*/', '* /', $_template->source->filepath)
+        );
         $output .= "/* @var Smarty_Internal_Template \$_smarty_tpl */\n";
         $dec = "\$_smarty_tpl->_decodeProperties(\$_smarty_tpl, " . var_export($properties, true) . ',' .
                ($cache ? 'true' : 'false') . ')';

libs/sysplugins/smarty_internal_runtime_writefile.php

@@ -29,12 +29,7 @@ class Smarty_Internal_Runtime_WriteFile
     {
         $_error_reporting = error_reporting();
         error_reporting($_error_reporting & ~E_NOTICE & ~E_WARNING);
-        $_file_perms = property_exists($smarty, '_file_perms') ? $smarty->_file_perms : 0644;
+        $old_umask = umask(0);
-        $_dir_perms =
-            property_exists($smarty, '_dir_perms') ? (isset($smarty->_dir_perms) ? $smarty->_dir_perms : 0777) : 0771;
-        if ($_file_perms !== null) {
-            $old_umask = umask(0);
-        }
         $_dirpath = dirname($_filepath);
         // if subdirs, create dir structure
         if ($_dirpath !== '.') {
@@ -42,7 +37,7 @@ class Smarty_Internal_Runtime_WriteFile
             // loop if concurrency problem occurs
             // see https://bugs.php.net/bug.php?id=35326
             while (!is_dir($_dirpath)) {
-                if (@mkdir($_dirpath, $_dir_perms, true)) {
+                if (@mkdir($_dirpath, 0771, true)) {
                     break;
                 }
                 clearstatcache();
@@ -89,11 +84,9 @@ class Smarty_Internal_Runtime_WriteFile
             error_reporting($_error_reporting);
             throw new SmartyException("unable to write file {$_filepath}");
         }
-        if ($_file_perms !== null) {
+        // set file permissions
-            // set file permissions
+        chmod($_filepath, 0644);
-            chmod($_filepath, $_file_perms);
+        umask($old_umask);
-            umask($old_umask);
-        }
         error_reporting($_error_reporting);
         return true;
     }

libs/sysplugins/smarty_internal_templatecompilerbase.php

@@ -422,9 +422,6 @@ abstract class Smarty_Internal_TemplateCompilerBase
         try {
             // save template object in compiler class
             $this->template = $template;
-            if (property_exists($this->template->smarty, 'plugin_search_order')) {
-                $this->plugin_search_order = $this->template->smarty->plugin_search_order;
-            }
             if ($this->smarty->debugging) {
                 if (!isset($this->smarty->_debug)) {
                     $this->smarty->_debug = new Smarty_Internal_Debug();
@@ -1135,7 +1132,7 @@ abstract class Smarty_Internal_TemplateCompilerBase
             flush();
         }
         $e = new SmartyCompilerException($error_text);
-        $e->line = $line;
+        $e->setLine($line);
         $e->source = trim(preg_replace('![\t\r\n]+!', ' ', $match[ $line - 1 ]));
         $e->desc = $args;
         $e->template = $this->template->source->filepath;
@@ -1439,6 +1436,10 @@ abstract class Smarty_Internal_TemplateCompilerBase
      */
     abstract protected function doCompile($_content, $isTemplateSource = false);
 
+    public function cStyleComment($string) {
+        return '/*' . str_replace('*/', '* /' , $string) . '*/';
+    }
+
     /**
      * Compile Tag
      *

libs/sysplugins/smarty_internal_templateparser.php

@@ -2397,6 +2397,9 @@ public static $yy_action = array(
     }
 // line 749 "../smarty/lexer/smarty_internal_templateparser.y"
     public function yy_r94(){
+	    if ($this->security && $this->security->static_classes !== array()) {
+		    $this->compiler->trigger_template_error('dynamic static class not allowed by security setting');
+	    }
     $prefixVar = $this->compiler->getNewPrefixVariable();
     if ($this->yystack[$this->yyidx + -2]->minor['var'] === '\'smarty\'') {
         $this->compiler->appendPrefixCode("<?php {$prefixVar} = ". $this->compiler->compileTag('private_special_variable',array(),$this->yystack[$this->yyidx + -2]->minor['smarty_internal_index']).';?>');

libs/sysplugins/smartycompilerexception.php

@@ -16,12 +16,12 @@ class SmartyCompilerException extends SmartyException
     }
 
     /**
-     * The line number of the template error
+     * @param int $line
-     *
-     * @type int|null
      */
-    public $line = null;
+    public function setLine($line)
-
+    {
+        $this->line = $line;
+    }
     /**
      * The template source snippet relating to the error
      *

run_tests_for_all_php_versions.sh

@@ -0,0 +1,7 @@
+# Runs tests for all supported PHP versions
+docker-compose run php71 && \
+docker-compose run php72 && \
+docker-compose run php73 && \
+docker-compose run php74 && \
+docker-compose run php80 && \
+docker-compose run php81

tests/UnitTests/CacheResourceTests/_shared/CacheResourceTestCommon.php

@@ -30,7 +30,8 @@ class CacheResourceTestCommon extends PHPUnit_Smarty
 
     public function compiledPrefilter($text, Smarty_Internal_Template $tpl)
     {
-        return str_replace('#', $tpl->getTemplateVars('test'), $text);
+        $replace = $tpl->getTemplateVars('test');
+        return str_replace('#', $replace ?? '', $text);
     }
 
     /**

tests/UnitTests/ResourceTests/Custom/Ambiguous/PHPunitplugins/resource.ambiguous.php

@@ -13,7 +13,7 @@ class Smarty_Resource_Ambiguous extends Smarty_Internal_Resource_File
 
     public function __construct($directory)
     {
-        $this->directory = rtrim($directory, "/\\") . DIRECTORY_SEPARATOR;
+        $this->directory = rtrim($directory ?? '', "/\\") . DIRECTORY_SEPARATOR;
         //        parent::__construct();
     }
 

tests/UnitTests/ResourceTests/Stream/StreamResourceTest.php

@@ -234,7 +234,7 @@ class ResourceStream
         $v = &$GLOBALS[$this->varname];
         $l = strlen($data);
         $p = &$this->position;
-        $v = substr($v, 0, $p) . $data . substr($v, $p += $l);
+        $v = substr($v ?? '', 0, $p) . $data . substr($v ?? '', $p += $l);
 
         return $l;
     }

tests/UnitTests/SecurityTests/SecurityTest.php

@@ -257,19 +257,41 @@ class SecurityTest extends PHPUnit_Smarty
         $this->assertEquals('25', $this->smarty->fetch($tpl));
     }
 
-/**
+	/**
- * test not trusted PHP function
+	 * test not trusted PHP function
-  * @runInSeparateProcess
+	 * @runInSeparateProcess
-  * @preserveGlobalState disabled
+	 * @preserveGlobalState disabled
-  */
+	 */
-    public function testNotTrustedStaticClass()
+	public function testNotTrustedStaticClass()
-    {
+	{
         $this->expectException('SmartyException');
         $this->expectExceptionMessage('access to static class \'mysecuritystaticclass\' not allowed by security setting');
         $this->smarty->security_policy->static_classes = array('null');
         $this->smarty->fetch('string:{mysecuritystaticclass::square(5)}');
     }
 
+	/**
+	 * test not trusted PHP function
+	 */
+	public function testNotTrustedStaticClassEval()
+	{
+		$this->expectException('SmartyException');
+		$this->expectExceptionMessage('dynamic static class not allowed by security setting');
+		$this->smarty->security_policy->static_classes = array('null');
+		$this->smarty->fetch('string:{$test = "mysecuritystaticclass"}{$test::square(5)}');
+	}
+
+	/**
+	 * test not trusted PHP function
+	 */
+	public function testNotTrustedStaticClassSmartyVar()
+	{
+		$this->expectException('SmartyException');
+		$this->expectExceptionMessage('dynamic static class not allowed by security setting');
+		$this->smarty->security_policy->static_classes = array('null');
+		$this->smarty->fetch('string:{$smarty.template_object::square(5)}');
+	}
+
     public function testChangedTrustedDirectory()
     {
         $this->smarty->security_policy->secure_dir = array(
@@ -344,9 +366,9 @@ class SecurityTest extends PHPUnit_Smarty
 
     /**
      * In security mode, accessing $smarty.template_object should be illegal.
-     * @expectedException SmartyCompilerException
      */
     public function testSmartyTemplateObject() {
+        $this->expectException(SmartyCompilerException::class);
         $this->smarty->display('string:{$smarty.template_object}');
     }
 
@@ -394,7 +416,7 @@ class ResourceStreamSecurity
         $v = &$GLOBALS[$this->varname];
         $l = strlen($data);
         $p = &$this->position;
-        $v = substr($v, 0, $p) . $data . substr($v, $p += $l);
+        $v = substr($v ?? '', 0, $p) . $data . substr($v ?? '', $p += $l);
 
         return $l;
     }

tests/UnitTests/TemplateSource/TagTests/PluginFunction/PluginFunctionHtmlSelectDateTest.php

@@ -210,6 +210,7 @@ class PluginFunctionHtmlSelectDateTest extends PHPUnit_Smarty
     public function setUp(): void
     {
         $this->setUpSmarty(dirname(__FILE__));
+        $this->smarty->setErrorReporting(E_ALL & ~E_DEPRECATED);
 
         $year = date('Y');
         $this->now = mktime(15, 0, 0, 2, 20, $year);
@@ -238,6 +239,7 @@ class PluginFunctionHtmlSelectDateTest extends PHPUnit_Smarty
 
         $this->years['default'] = "<option value=\"{$year}\" selected=\"selected\">{$year}</option>";
         $this->years['none'] = "<option value=\"{$year}\">{$year}</option>";
+
     }
 
     protected function reverse($string)
@@ -394,6 +396,33 @@ class PluginFunctionHtmlSelectDateTest extends PHPUnit_Smarty
         $this->assertEquals($result, $tpl->fetch());
     }
 
+    public function testEmptyDayWithDateString() {
+        $n = "\n";
+        $result = '<select name="Date_Month">' . $n . $this->months['default'] . $n . '</select>'
+            . $n . '<select name="Date_Day">' . $n . '<option value="">day</option>' . $n . $this->days['none'] . $n . '</select>'
+            . $n . '<select name="Date_Year">' . $n . $this->years['start_2005'] . $n . '</select>';
+        $tpl = $this->smarty->createTemplate('eval:{html_select_date time="2022-02-" day_empty="day" start_year=2005}');
+        $this->assertEquals($result, $tpl->fetch());
+    }
+
+    public function testEmptyMonthWithDateStrings() {
+        $n = "\n";
+        $result = '<select name="Date_Month">' . $n . '<option value="">month</option>' . $n . $this->months['none'] . $n . '</select>'
+            . $n . '<select name="Date_Day">' . $n . $this->days['default'] . $n . '</select>'
+            . $n . '<select name="Date_Year">' . $n . $this->years['start_2005'] . $n . '</select>';
+        $tpl = $this->smarty->createTemplate('eval:{html_select_date time="2022--20" month_empty="month" start_year=2005}');
+        $this->assertEquals($result, $tpl->fetch());
+    }
+
+    public function testEmptyYearWithDateStrings() {
+        $n = "\n";
+        $result = '<select name="Date_Month">' . $n . $this->months['default'] . $n . '</select>'
+            . $n . '<select name="Date_Day">' . $n . $this->days['default'] . $n . '</select>'
+            . $n . '<select name="Date_Year">' . $n . '<option value="">year</option>' . $n . $this->years['none'] . $n . '</select>';
+        $tpl = $this->smarty->createTemplate('eval:{html_select_date time="-02-20" year_empty="year"}');
+        $this->assertEquals($result, $tpl->fetch());
+    }
+
     public function testId()
     {
         $n = "\n";

tests/UnitTests/TemplateSource/TagTests/PluginFunction/PluginFunctionMailtoTest.php

@@ -150,7 +150,7 @@ class PluginFunctionMailtoTest extends PHPUnit_Smarty
 
     public function testUmlauts()
     {
-        $result = '<a href="mailto:me+smtpext@example.com?cc=you@example.com,they@example.com&subject=h%C3%A4llo%20w%C3%B6rld" >me+smtpext@example.com</a>';
+        $result = '<a href="mailto:me+smtpext@example.com?cc=you@example.com,they@example.com&amp;subject=h%C3%A4llo%20w%C3%B6rld" >me+smtpext@example.com</a>';
         $tpl = $this->smarty->createTemplate('eval:{mailto address="me+smtpext@example.com" cc="you@example.com,they@example.com" subject="hällo wörld"}');
         $this->assertEquals(str_replace("\r", '', $result), $this->smarty->fetch($tpl));
     }
@@ -158,9 +158,26 @@ class PluginFunctionMailtoTest extends PHPUnit_Smarty
     public function testUmlautsWithoutMbstring()
     {
         Smarty::$_MBSTRING = false;
-        $result = '<a href="mailto:me+smtpext@example.com?cc=you@example.com,they@example.com&subject=h%C3%A4llo%20w%C3%B6rld" >me+smtpext@example.com</a>';
+        $result = '<a href="mailto:me+smtpext@example.com?cc=you@example.com,they@example.com&amp;subject=h%C3%A4llo%20w%C3%B6rld" >me+smtpext@example.com</a>';
         $tpl = $this->smarty->createTemplate('eval:{mailto address="me+smtpext@example.com" cc="you@example.com,they@example.com" subject="hällo wörld"}');
         $this->assertEquals(str_replace("\r", '', $result), $this->smarty->fetch($tpl));
         Smarty::$_MBSTRING = true;
     }
+
+	public function testJavascriptChars()
+	{
+		$result = '<script type="text/javascript">document.write(unescape(\'%3c%61%20%68%72%65%66%3d%22%6d%61%69%6c%74%6f%3a%6d%65%40%65%78%61%6d%70%6c%65%2e%63%6f%6d%26%71%75%6f%74%3b%26%67%74%3b%6d%65%40%65%78%61%6d%70%6c%65%2e%63%6f%6d%26%23%30%33%39%3b%29%3b%20%61%6c%65%72%74%28%26%71%75%6f%74%3b%69%6e%6a%65%63%74%69%6f%6e%26%71%75%6f%74%3b%29%3b%20%2f%2f%22%20%3e%6d%65%40%65%78%61%6d%70%6c%65%2e%63%6f%6d%26%71%75%6f%74%3b%26%67%74%3b%6d%65%40%65%78%61%6d%70%6c%65%2e%63%6f%6d%26%23%30%33%39%3b%29%3b%20%61%6c%65%72%74%28%26%71%75%6f%74%3b%69%6e%6a%65%63%74%69%6f%6e%26%71%75%6f%74%3b%29%3b%20%2f%2f%3c%2f%61%3e\'))</script>';
+		$this->smarty->assign('address', 'me@example.com">me@example.com\'); alert("injection"); //');
+		$tpl = $this->smarty->createTemplate('eval:{mailto address=$address encode=javascript}');
+		$this->assertEquals(str_replace("\r", '', $result), $this->smarty->fetch($tpl));
+	}
+
+	public function testHtmlChars()
+	{
+		$result = '<a href="mailto:me@example.com&quot;&gt;&lt;h1&gt;" class="email">me@example.com&quot;&gt;&lt;h1&gt;</a>';
+		$this->smarty->assign('address', 'me@example.com"><h1>');
+		$tpl = $this->smarty->createTemplate('eval:{mailto address=$address extra=\'class="email"\'}');
+		$this->assertEquals(str_replace("\r", '', $result), $this->smarty->fetch($tpl));
+	}
+
 }

tests/UnitTests/TemplateSource/TagTests/PluginModifier/PluginModifierExplodeTest.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace UnitTests\TemplateSource\TagTests\PluginModifier;
+
+/**
+ * class for modifier tests
+ *
+ * @runTestsInSeparateProcess
+ * @preserveGlobalState disabled
+ * @backupStaticAttributes enabled
+ */
+class PluginModifierExplodeTest extends \PHPUnit_Smarty
+{
+    public function setUp(): void
+    {
+        $this->setUpSmarty(__DIR__);
+    }
+
+    /**
+     * @return void
+     * @throws \SmartyException
+     *
+     * @dataProvider explodeDataProvider
+     */
+    public function testExplode($template, $subject, $expectedString)
+    {
+        $this->smarty->assign('subject', $subject);
+
+        $tpl = $this->smarty->createTemplate($template);
+        $res = $this->smarty->fetch($tpl);
+
+        $this->assertEquals($expectedString, $res);
+    }
+
+    public function explodeDataProvider()
+    {
+        return [
+            'default'  => [
+                'template'      => 'string:{","|explode:$subject|json_encode}',
+                'subject'       => 'a,b,c,d',
+                'expectedString' => '["a","b","c","d"]',
+            ],
+            'withNoDelimiterFound'  => [
+                'template'      => 'string:{","|explode:$subject|json_encode}',
+                'subject'       => 'abcd',
+                'expectedString' => '["abcd"]',
+            ],
+            'withNull' => [
+                'template'      => 'string:{","|explode:$subject|json_encode}',
+                'subject'       => null,
+                'expectedString' => '[""]',
+            ],
+        ];
+    }
+}

tests/UnitTests/TemplateSource/TagTests/PluginModifier/PluginModifierNumberFormatTest.php

@@ -0,0 +1,59 @@
+<?php
+
+namespace UnitTests\TemplateSource\TagTests\PluginModifier;
+
+/**
+ * class for modifier tests
+ *
+ * @runTestsInSeparateProcess
+ * @preserveGlobalState disabled
+ * @backupStaticAttributes enabled
+ */
+class PluginModifierNumberFormatTest extends \PHPUnit_Smarty
+{
+    public function setUp(): void
+    {
+        $this->setUpSmarty(__DIR__);
+    }
+
+    /**
+     * @return void
+     * @throws \SmartyException
+     *
+     * @dataProvider numberFormatDataProvider
+     */
+    public function testNumberFormat($template, $subject, $expectedString)
+    {
+        $this->smarty->assign('subject', $subject);
+
+        $tpl = $this->smarty->createTemplate($template);
+
+        $this->assertEquals($expectedString, $this->smarty->fetch($tpl));
+    }
+
+    public function numberFormatDataProvider()
+    {
+        return [
+            'default'  => [
+                'template'      => 'string:{$subject|number_format}',
+                'subject'       => 12345,
+                'expectedString' => "12,345",
+            ],
+            'withDecimalDefault'  => [
+                'template'      => 'string:{$subject|number_format}',
+                'subject'       => 12345.6789,
+                'expectedString' => "12,346",
+            ],
+            'withDecimalAndExtras'  => [
+                'template'      => 'string:{$subject|number_format:2:"-":"~"}',
+                'subject'       => 12345.6789,
+                'expectedString' => "12~345-68",
+            ],
+            'withNull' => [
+                'template'      => 'string:{$subject|number_format}',
+                'subject'       => null,
+                'expectedString' => 0,
+            ],
+        ];
+    }
+}

tests/UnitTests/TemplateSource/TagTests/PluginModifier/PluginModifierReplaceTest.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace UnitTests\TemplateSource\TagTests\PluginModifier;
+
+/**
+ * class for modifier tests
+ *
+ * @runTestsInSeparateProcess
+ * @preserveGlobalState disabled
+ * @backupStaticAttributes enabled
+ */
+class PluginModifierReplaceTest extends \PHPUnit_Smarty
+{
+    public function setUp(): void
+    {
+        $this->setUpSmarty(__DIR__);
+    }
+
+    /**
+     * @return void
+     * @throws \SmartyException
+     *
+     * @dataProvider replaceDataProvider
+     */
+    public function testReplace($template, $subject, $expectedString)
+    {
+        $this->smarty->assign('subject', $subject);
+
+        $tpl = $this->smarty->createTemplate($template);
+
+        $this->assertEquals($expectedString, $this->smarty->fetch($tpl));
+    }
+
+    public function replaceDataProvider()
+    {
+        return [
+            'default'  => [
+                'template'      => 'string:{$subject|replace:",":"-"}',
+                'subject'       => "a,b,c,d",
+                'expectedString' => "a-b-c-d",
+            ],
+            'doNothing'  => [
+                'template'      => 'string:{$subject|replace:"":""}',
+                'subject'       => "a,b,c,d",
+                'expectedString' => "a,b,c,d",
+            ],
+            'withNull' => [
+                'template'      => 'string:{$subject|replace:"":""}',
+                'subject'       => null,
+                'expectedString' => "",
+            ],
+        ];
+    }
+}

tests/UnitTests/TemplateSource/TagTests/PluginModifier/PluginModifierUnescapeTest.php

@@ -63,6 +63,11 @@ class PluginModifierUnescapeTest extends PHPUnit_Smarty
         $tpl = $this->smarty->createTemplate('string:{"' . $encoded . '"|unescape:"url"}');
         $this->assertEquals($result, $this->smarty->fetch($tpl));
     }
-}
 
-?>
+    public function testCharset()
+    {
+        $tpl = $this->smarty->createTemplate("string:{''Stiff Opposition Expected to Casketless Funeral Plan''|unescape:'htmlall':'utf-8'}");
+        $this->assertEquals("'Stiff Opposition Expected to Casketless Funeral Plan'", $this->smarty->fetch($tpl));
+    }
+
+}

tests/UnitTests/TemplateSource/TagTests/TemplateFunction/CompileFunctionTest.php

@@ -435,9 +435,9 @@ class CompileFunctionTest extends PHPUnit_Smarty
 
     /**
      * Test handling of function names that are a security risk
-     * @expectedException        SmartyCompilerException
      */
     public function testIllegalFunctionName() {
+        $this->expectException(SmartyCompilerException::class);
 	    $this->smarty->fetch('string:{function name=\'rce(){};echo "hi";function \'}{/function}');
     }
 

tests/UnitTests/TemplateSource/ValueTests/Math/MathTest.php

@@ -44,6 +44,30 @@ class MathTest extends PHPUnit_Smarty
         $this->assertEquals($expected, $this->smarty->fetch($tpl));
     }
 
+    public function testMultipleOperators()
+    {
+        $this->smarty->disableSecurity();
+        $expected = "2 -- 2";
+        $tpl = $this->smarty->createTemplate('eval:{$x = 5}{$y = 4}{math equation="x - y + 1" x=$x y=$y} -- {math equation="5 - 4 + 1"}');
+        $this->assertEquals($expected, $this->smarty->fetch($tpl));
+    }
+
+    public function testMathMaxFunctionParameters()
+    {
+        $this->smarty->disableSecurity();
+        $expected = max(0, 2) . ' -- ' . max(0, 2, 3);
+        $tpl = $this->smarty->createTemplate('eval:{$x = 0}{$y = 2}{$z = 3}{math equation="max(x, y)" x=$x y=$y} -- {math equation="max(x, y, z)" x=$x y=$y z=$z}');
+        $this->assertEquals($expected, $this->smarty->fetch($tpl));
+    }
+
+    public function testMathMinFunctionParameters()
+    {
+        $this->smarty->disableSecurity();
+        $expected = min(1, 2) . ' -- ' . min(1, 2, 0);
+        $tpl = $this->smarty->createTemplate('eval:{$x = 1}{$y = 2}{$z = 0}{math equation="min(x, y)" x=$x y=$y} -- {math equation="min(x, y, z)" x=$x y=$y z=$z}');
+        $this->assertEquals($expected, $this->smarty->fetch($tpl));
+    }
+
     public function testSyntaxSin()
     {
         $this->smarty->disableSecurity();
@@ -108,34 +132,36 @@ class MathTest extends PHPUnit_Smarty
         $this->assertEquals($expected, $this->smarty->fetch($tpl));
     }
 
-	/**
-	 * @expectedException PHPUnit_Framework_Error_Warning
-	 */
 	public function testBackticksIllegal()
 	{
+		$this->expectException(PHPUnit\Framework\Error\Warning::class);
 		$expected = "22.00";
 		$tpl = $this->smarty->createTemplate('eval:{$x = "4"}{$y = "5.5"}{math equation="`ls` x * y" x=$x y=$y}');
 		$this->assertEquals($expected, $this->smarty->fetch($tpl));
 	}
 
-	/**
-	 * @expectedException PHPUnit_Framework_Error_Warning
-	 */
 	public function testDollarSignsIllegal()
 	{
+		$this->expectException(PHPUnit\Framework\Error\Warning::class);
 		$expected = "22.00";
 		$tpl = $this->smarty->createTemplate('eval:{$x = "4"}{$y = "5.5"}{math equation="$" x=$x y=$y}');
 		$this->assertEquals($expected, $this->smarty->fetch($tpl));
 	}
 
-	/**
-	 * @expectedException PHPUnit_Framework_Error_Warning
-	 */
 	public function testBracketsIllegal()
 	{
+		$this->expectException(PHPUnit\Framework\Error\Warning::class);
 		$expected = "I";
 		$tpl = $this->smarty->createTemplate('eval:{$x = "0"}{$y = "1"}{math equation="((y/x).(x))[x]" x=$x y=$y}');
 		$this->assertEquals($expected, $this->smarty->fetch($tpl));
 	}
 
+	public function testRand()
+	{
+		$tpl = $this->smarty->createTemplate('eval:{$x = "0"}{math equation="x * rand()" x=$x}');
+		// this assertion may seem silly, but it serves to prove that using rand() without a parameter
+		// will not trigger a security error (see https://github.com/smarty-php/smarty/issues/794)
+		$this->assertEquals("0", $this->smarty->fetch($tpl));
+	}
+
 }

tests/UnitTests/TemplateSource/ValueTests/Variables/Stream/StreamVariableTest.php

@@ -96,7 +96,7 @@ class VariableStream
         $v = &$GLOBALS[$this->varname];
         $l = strlen($data);
         $p = &$this->position;
-        $v = substr($v, 0, $p) . $data . substr($v, $p += $l);
+        $v = substr($v ?? '', 0, $p) . $data . substr($v ?? '', $p += $l);
 
         return $l;
     }

tests/UnitTests/TemplateSource/_Issues/549/MbSplitEncodingIssue549Test.php

@@ -0,0 +1,77 @@
+<?php
+/**
+ * Smarty PHPunit tests - issue #549 regression tests
+ *
+ * @package PHPunit
+ * @author  Andrey Repin <anrdaemon@yandex.ru>
+ */
+
+/**
+ * class for compiler tests
+ *
+ * @runTestsInSeparateProcess
+ * @preserveGlobalState    disabled
+ * @backupStaticAttributes enabled
+ *
+ * mb_split breaks if Smarty encoding is not the same as mbstring regex encoding.
+ */
+class MbSplitEncodingIssue549Test extends PHPUnit_Smarty
+{
+    /** @var string Saved Smarty charset */
+    private $charset;
+
+    /** @var array Source data for tests, hexed to protect from accidental reencoding */
+    private $data = array(
+        "subject" => '4772c3bc6e6577616c64', // "Grünewald"
+        "pattern" => '77616c64', // "wald"
+        "replacement" => '7374c3bc726d', // "stürm"
+        "result" => '4772c3bc6e657374c3bc726d', // "Grünestürm"
+    );
+
+	public function setUp(): void
+    {
+        if(!\Smarty::$_MBSTRING)
+        {
+            $this->markTestSkipped("mbstring extension is not in use by Smarty");
+        }
+
+        $this->charset = \Smarty::$_CHARSET;
+        $this->setUpSmarty(dirname(__FILE__));
+    }
+
+    protected function tearDown(): void
+    {
+        \Smarty::$_CHARSET = $this->charset ?: \Smarty::$_CHARSET;
+        $this->cleanDirs();
+    }
+
+    /** Provider for testReplaceModifier
+     */
+    public function encodingPairsProvider()
+    {
+        return array(
+            "with non-UNICODE src/non-UNICODE regex (PHP < 5.6 default)" => array("Windows-1252", "EUC-JP"),
+            "with UTF-8 src/non-UNICODE regex (PHP < 5.6 default)" => array("UTF-8", "EUC-JP"),
+            "with UTF-8 src/UTF-8 regex (PHP >= 5.6)" => array("UTF-8", "UTF-8"),
+            "with non-UNICODE src/UTF-8 regex" => array("Windows-1252", "UTF-8"),
+        );
+    }
+
+    /** Test behavior of `replace` modifier with different source and regex encodings
+     *
+     * @dataProvider encodingPairsProvider
+     */
+    public function testReplaceModifier($mb_int_encoding, $mb_regex_encoding)
+    {
+        $data = $this->data;
+        \array_walk($data, function(&$value, $key) use($mb_int_encoding) {
+            $value = \mb_convert_encoding(pack("H*", $value), $mb_int_encoding, "UTF-8");
+        });
+        \extract($data, \EXTR_SKIP);
+
+        \mb_regex_encoding($mb_regex_encoding);
+        \Smarty::$_CHARSET = $mb_int_encoding;
+        $this->assertEquals($result, $this->smarty->fetch("string:{\"$subject\"|replace:\"$pattern\":\"$replacement\"}"));
+    }
+
+}

tests/UnitTests/TemplateSource/_Issues/549/cache/.gitignore

@@ -0,0 +1,2 @@
+# Ignore anything in here, but keep this directory
+*

tests/UnitTests/TemplateSource/_Issues/549/templates_c/.gitignore

@@ -0,0 +1,2 @@
+# Ignore anything in here, but keep this directory
+*

utilities/testrunners/php71/Dockerfile

@@ -0,0 +1,10 @@
+FROM php:7.1-cli
+
+## Basic utilities
+RUN apt-get update -yqq && apt-get install -y curl apt-utils git zip unzip
+
+## Composer
+COPY ./utilities/testrunners/shared/install-composer.sh /root/install-composer.sh
+WORKDIR /root
+RUN sh ./install-composer.sh
+RUN mv ./composer.phar /usr/local/bin/composer

utilities/testrunners/php72/Dockerfile

@@ -0,0 +1,10 @@
+FROM php:7.2-cli
+
+## Basic utilities
+RUN apt-get update -yqq && apt-get install -y curl apt-utils git zip unzip
+
+## Composer
+COPY ./utilities/testrunners/shared/install-composer.sh /root/install-composer.sh
+WORKDIR /root
+RUN sh ./install-composer.sh
+RUN mv ./composer.phar /usr/local/bin/composer

utilities/testrunners/php73/Dockerfile

@@ -0,0 +1,10 @@
+FROM php:7.3-cli
+
+## Basic utilities
+RUN apt-get update -yqq && apt-get install -y curl apt-utils git zip unzip
+
+## Composer
+COPY ./utilities/testrunners/shared/install-composer.sh /root/install-composer.sh
+WORKDIR /root
+RUN sh ./install-composer.sh
+RUN mv ./composer.phar /usr/local/bin/composer

utilities/testrunners/php74/Dockerfile

@@ -0,0 +1,10 @@
+FROM php:7.4-cli
+
+## Basic utilities
+RUN apt-get update -yqq && apt-get install -y curl apt-utils git zip unzip
+
+## Composer
+COPY ./utilities/testrunners/shared/install-composer.sh /root/install-composer.sh
+WORKDIR /root
+RUN sh ./install-composer.sh
+RUN mv ./composer.phar /usr/local/bin/composer

utilities/testrunners/php80/Dockerfile

@@ -0,0 +1,10 @@
+FROM php:8.0-cli
+
+## Basic utilities
+RUN apt-get update -yqq && apt-get install -y curl apt-utils git zip unzip
+
+## Composer
+COPY ./utilities/testrunners/shared/install-composer.sh /root/install-composer.sh
+WORKDIR /root
+RUN sh ./install-composer.sh
+RUN mv ./composer.phar /usr/local/bin/composer

utilities/testrunners/php81/Dockerfile

@@ -0,0 +1,10 @@
+FROM php:8.1-cli
+
+## Basic utilities
+RUN apt-get update -yqq && apt-get install -y curl apt-utils git zip unzip
+
+## Composer
+COPY ./utilities/testrunners/shared/install-composer.sh /root/install-composer.sh
+WORKDIR /root
+RUN sh ./install-composer.sh
+RUN mv ./composer.phar /usr/local/bin/composer

utilities/testrunners/run-test.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+composer update && php ./vendor/phpunit/phpunit/phpunit

utilities/testrunners/shared/install-composer.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+
+EXPECTED_CHECKSUM="$(php -r 'copy("https://composer.github.io/installer.sig", "php://stdout");')"
+php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
+ACTUAL_CHECKSUM="$(php -r "echo hash_file('sha384', 'composer-setup.php');")"
+
+if [ "$EXPECTED_CHECKSUM" != "$ACTUAL_CHECKSUM" ]
+then
+    >&2 echo 'ERROR: Invalid installer checksum'
+    rm composer-setup.php
+    exit 1
+fi
+
+php composer-setup.php --quiet
+RESULT=$?
+rm composer-setup.php
+exit $RESULT