1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132
|
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.6 $ -->
<refentry xml:id="function.apc-store" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>apc_store</refname>
<refpurpose>
Cache a variable in the data store
</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>apc_store</methodname>
<methodparam><type>string</type><parameter>key</parameter></methodparam>
<methodparam><type>mixed</type><parameter>var</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>ttl</parameter></methodparam>
</methodsynopsis>
<para>
Cache a variable in the data store.
</para>
<note>
<simpara>
Unlike many other mechanisms in PHP, variables stored using
<function>apc_store</function> will persist between requests (until the
value is removed from the cache).
</simpara>
</note>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>key</parameter></term>
<listitem>
<para>
Store the variable using this name. <parameter>key</parameter>s are
cache-unique, so storing a second value with the same
<parameter>key</parameter> will overwrite the original value.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>var</parameter></term>
<listitem>
<para>
The variable to store
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>ttl</parameter></term>
<listitem>
<para>
Time To Live; store <parameter>var</parameter> in the cache for
<parameter>ttl</parameter> seconds. After the
<parameter>ttl</parameter> has passed, the stored variable will be
expunged from the cache (on the next request). If no <parameter>ttl</parameter>
is supplied (or if the <parameter>ttl</parameter> is
<literal>0</literal>), the value will persist until it is removed from
the cache manually, or otherwise fails to exist in the cache (clear,
restart, etc.).
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.success;
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>A <function>apc_store</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$bar = 'BAR';
apc_store('foo', $bar);
var_dump(apc_fetch('foo'));
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
string(3) "BAR"
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>apc_add</function></member>
<member><function>apc_fetch</function></member>
<member><function>apc_delete</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"../../../../manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->
|