mirror of
https://github.com/smarty-php/smarty.git
synced 2025-11-04 06:11:37 +01:00
113 lines
3.3 KiB
PHP
113 lines
3.3 KiB
PHP
<?php
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/**
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* Smarty Autoloader
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*
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* @package Smarty
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*/
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/**
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* Smarty Autoloader
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*
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* @package Smarty
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* @author Uwe Tews
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*
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* Usage:
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* include '...path/Autoloader.php';
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* Smarty_Autoloader::register();
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* $smarty = new Smarty();
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*
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* Note: This autoloader is not needed if you use Composer.
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* Composer will automatically add the classes of the Smarty package to it common autoloader.
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*/
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class Smarty_Autoloader
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{
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/**
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* Filepath to Smarty root
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*
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* @var string
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*/
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public static $SMARTY_DIR = '';
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/**
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* Filepath to Smarty internal plugins
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*
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* @var string
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*/
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public static $SMARTY_SYSPLUGINS_DIR = '';
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/**
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* Array of not existing classes to avoid is_file calls for already tested classes
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*
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* @var array
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*/
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public static $unknown = array();
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/**
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* Array with Smarty core classes and their filename
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*
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* @var array
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*/
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public static $rootClasses = array('Smarty' => 'Smarty.class.php',
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'SmartyBC' => 'SmartyBC.class.php',
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);
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/**
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* Registers Smarty_Autoloader backward compatible to older installations.
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*
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* @param bool $prepend Whether to prepend the autoloader or not.
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*/
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public static function registerBC($prepend = false)
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{
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/**
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* register the class autoloader
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*/
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if (!defined('SMARTY_SPL_AUTOLOAD')) {
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define('SMARTY_SPL_AUTOLOAD', 0);
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}
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if (SMARTY_SPL_AUTOLOAD && set_include_path(get_include_path() . PATH_SEPARATOR . SMARTY_SYSPLUGINS_DIR) !== false) {
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$registeredAutoLoadFunctions = spl_autoload_functions();
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if (!isset($registeredAutoLoadFunctions['spl_autoload'])) {
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spl_autoload_register();
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}
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} else {
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self::register($prepend);
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}
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}
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/**
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* Registers Smarty_Autoloader as an SPL autoloader.
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*
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* @param bool $prepend Whether to prepend the autoloader or not.
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*/
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public static function register($prepend = false)
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{
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self::$SMARTY_DIR = defined('SMARTY_DIR') ? SMARTY_DIR : dirname(__FILE__) . '/';
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self::$SMARTY_SYSPLUGINS_DIR = defined('SMARTY_SYSPLUGINS_DIR') ? SMARTY_SYSPLUGINS_DIR : self::$SMARTY_DIR . 'sysplugins/';
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if (version_compare(phpversion(), '5.3.0', '>=')) {
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spl_autoload_register(array(__CLASS__, 'autoload'), true, $prepend);
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} else {
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spl_autoload_register(array(__CLASS__, 'autoload'));
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}
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}
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/**
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* Handles autoloading of classes.
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*
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* @param string $class A class name.
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*/
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public static function autoload($class)
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{
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// Request for Smarty or already unknown class
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if (0 !== strpos($class, 'Smarty') || isset(self::$unknown[$class])) {
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return;
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}
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if (isset(self::$rootClasses[$class]) && is_file($file = self::$SMARTY_DIR . self::$rootClasses[$class])) {
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require $file;
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return;
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}
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$_class = strtolower($class);
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if (is_file($file = self::$SMARTY_SYSPLUGINS_DIR . $_class . '.php')) {
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require $file;
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} else {
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self::$unknown[$class] = true;
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}
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}
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}
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