smarty/docs/en/programmers/api-functions/api-clear-cache.xml

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<refentry id="api.clear.cache">
 <refnamediv>
  <refname>clear_cache()</refname>
  <refpurpose>clears the cache for a specific template</refpurpose>
 </refnamediv>
 <refsect1>
  <title>Description</title>
  <methodsynopsis>
   <type>void</type><methodname>clear_cache</methodname>
   <methodparam><type>string</type><parameter>template</parameter></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>cache_id</parameter></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>compile_id</parameter>
   </methodparam>
   <methodparam choice="opt"><type>int</type><parameter>expire_time</parameter></methodparam>
  </methodsynopsis>
  <para>
   If you have <link linkend="caching.multiple.caches">multiple caches</link>
   for a template, you can clear a specific
   cache by supplying the <parameter>cache_id</parameter> as the second
   parameter.
   You can also pass a
   <link linkend="variable.compile.id"><parameter>$compile_id</parameter></link>
   as a third parameter.
   You can <link linkend="caching.groups">"group"</link> templates
   together so they can be removed as a group. See the
   <link linkend="caching">caching section</link> for more
   information. As an optional fourth parameter, you can supply a
   minimum age in seconds the cache file must be before it will
   get cleared.
  </para>
  <example>
   <title>clear_cache()</title>
   <programlisting role="php">
<![CDATA[
<?php
// clear the cache for a template
$smarty->clear_cache('index.tpl');

// clear the cache for a particular cache id in an multiple-cache template
$smarty->clear_cache('index.tpl', 'CACHEID');
?>
]]>
   </programlisting>
  </example>
  <para>
  See also
  <link linkend="api.clear.all.cache">clear_all_cache()</link>
  and
  <link linkend="caching">caching</link>.
  </para>
 </refsect1>
</refentry>
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