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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 290987 $ -->
<refentry xml:id="function.apc-cache-info" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>apc_cache_info</refname>
<refpurpose>
Retrieves cached information from APC's data store
</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>array</type><methodname>apc_cache_info</methodname>
<methodparam choice="opt"><type>string</type><parameter>cache_type</parameter></methodparam>
<methodparam choice="opt"><type>bool</type><parameter>limited</parameter><initializer>false</initializer></methodparam>
</methodsynopsis>
<para>
Retrieves cached information and meta-data from APC's data store.
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Array of cached data (and meta-data)&return.falseforfailure;
</para>
<note>
<simpara>
<function>apc_cache_info</function> will raise a warning if it is unable to
retrieve APC cache data. This typically occurs when APC is not enabled.
</simpara>
</note>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>cache_type</parameter></term>
<listitem>
<para>
If <parameter>cache_type</parameter> is "<literal>user</literal>",
information about the user cache will be returned.
</para>
<para>
If <parameter>cache_type</parameter> is "<literal>filehits</literal>",
information about which files have been served from the bytecode cache
for the current request will be returned. This feature must be enabled at
compile time using <option role="configure">--enable-filehits</option>.
</para>
<para>
If an invalid or no <parameter>cache_type</parameter> is specified, information about
the system cache (cached files) will be returned.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>limited</parameter></term>
<listitem>
<para>
If <parameter>limited</parameter> is &true;, the
return value will exclude the individual list of cache entries. This
is useful when trying to optimize calls for statistics gathering.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>3.0.11</entry>
<entry>
The <parameter>limited</parameter> parameter was introduced.
</entry>
</row>
<row>
<entry>3.0.16</entry>
<entry>
The "<literal>filehits</literal>" option for the
<parameter>cache_type</parameter> parameter was introduced.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>A <function>apc_cache_info</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
print_r(apc_cache_info());
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
Array
(
[num_slots] => 2000
[ttl] => 0
[num_hits] => 9
[num_misses] => 3
[start_time] => 1123958803
[cache_list] => Array
(
[0] => Array
(
[filename] => /path/to/apc_test.php
[device] => 29954
[inode] => 1130511
[type] => file
[num_hits] => 1
[mtime] => 1123960686
[creation_time] => 1123960696
[deletion_time] => 0
[access_time] => 1123962864
[ref_count] => 1
[mem_size] => 677
)
[1] => Array (...iterates for each cached file)
)
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><link linkend="apc.configuration">APC configuration directives</link></member>
</simplelist>
</para>
</refsect1>
</refentry>
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