smarty/docs/en/programmers/api-functions/api-register-block.xml

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<refentry id="api.register.block">
 <refnamediv>
  <refname>register_block</refname>
  <refpurpose></refpurpose>
 </refnamediv>
 <refsect1>
  <title />
  <methodsynopsis>
   <type>void</type><methodname>register_block</methodname>
   <methodparam><type>string</type><parameter>name</parameter></methodparam>
   <methodparam><type>mixed</type><parameter>impl</parameter></methodparam>
   <methodparam><type>bool</type><parameter>cacheable</parameter></methodparam>
   <methodparam><type>mixed</type><parameter>cache_attrs</parameter></methodparam>
  </methodsynopsis>
  <para>
   Use this to dynamically register block functions plugins.
   Pass in the block function name, followed by the PHP
   function callback that implements it.
  </para>
  <para>
   The php-function callback <parameter>impl</parameter> can be either (a) a string
   containing the function name or (b) an array of the form
   <literal>array(&amp;$object, $method)</literal> with
   <literal>&amp;$object</literal> being a reference to an
   object and <literal>$method</literal> being a string
   containing the mehod-name or (c) an array of the form
   <literal>array(&amp;$class, $method)</literal> with
   <literal>$class</literal> being a classname and
   <literal>$method</literal> being a class method of that
   class.
  </para>
  <para>
   <parameter>cacheable</parameter> and <parameter>cache_attrs</parameter>
   can be omitted in most cases. See <link 
   linkend="caching.cacheable">Controlling Cacheability of Plugins' Output</link>
   on how to use them properly.
  </para>
  <example>
   <title>register_block</title>
   <programlisting role="php">
<![CDATA[
<?php
$smarty->register_block("translate", "do_translation");

function do_translation ($params, $content, &$smarty, &$repeat) 
{
  if (isset($content)) {
    $lang = $params['lang'];
    // do some translation with $content
    return $translation;
  }
}
?>

{* template *}
{translate lang="br"}
Hello, world!
{/translate}
]]>
   </programlisting>
  </example>
 </refsect1>
</refentry>
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