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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: 3c36a56c9e6875fbe3295827a15747d6eae9572e Maintainer: mowangjuanzi Status: ready -->
<refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="function.opcache-is-script-cached">
<refnamediv>
<refname>opcache_is_script_cached</refname>
<refpurpose>用于判断脚本是否已缓存在 OPCache 中</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>opcache_is_script_cached</methodname>
<methodparam><type>string</type><parameter>filename</parameter></methodparam>
</methodsynopsis>
<simpara>
此函数用于检查 PHP 脚本是否已缓存在 OPCache
中。可更方便地判断特定脚本的缓存“预热”状态。该函数仅检查内存缓存,不检查文件缓存;若需检查文件缓存,请使用
<function>opcache_is_script_cached_in_file_cache</function>
</simpara>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<variablelist>
<varlistentry>
<term><parameter>filename</parameter></term>
<listitem>
<simpara>
待检查的 PHP 脚本路径。
</simpara>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<simpara>
如果 <parameter>filename</parameter> 已缓存在 OPCache 的内存缓存中,则返回 &true;,否则返回 &false;
</simpara>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<simplelist>
<member><function>opcache_compile_file</function></member>
<member><function>opcache_is_script_cached_in_file_cache</function></member>
</simplelist>
</refsect1>
</refentry>
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