set-include-path.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.set-include-path" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>set_include_path</refname>
  <refpurpose>设置 include_path 配置选项</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type class="union"><type>string</type><type>false</type></type><methodname>set_include_path</methodname>
   <methodparam><type>string</type><parameter>include_path</parameter></methodparam>
  </methodsynopsis>
  <para>
   为当前脚本设置 <link linkend="ini.include-path">include_path</link>
   运行时的配置选项。
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>include_path</parameter></term>
     <listitem>
      <para>
       <link
       linkend="ini.include-path">include_path</link> 新的值。
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   成功时返回旧的 <link linkend="ini.include-path">include_path</link>&return.falseforfailure;。
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>set_include_path</function> 示例</title>
    <programlisting role="php">
<![CDATA[
<?php
set_include_path('/usr/lib/pear');

// 或使用 ini_set
ini_set('include_path', '/usr/lib/pear');
?>
]]>
    </programlisting>
   </example>
  </para>
  <para>
   <example>
    <title>添加到include path</title>
    <para>
     利用常量 <constant>PATH_SEPARATOR</constant> 可跨平台扩展 include path。
    </para>
    <para>
     这个示例中我们把 <filename>/usr/lib/pear</filename> 添加到了
     现有的 <literal>include_path</literal> 的尾部。
    </para>
    <programlisting role="php">
<![CDATA[
<?php
$path = '/usr/lib/pear';
set_include_path(get_include_path() . PATH_SEPARATOR . $path);
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>ini_set</function></member>
    <member><function>get_include_path</function></member>
    <member><function>restore_include_path</function></member>
    <member><function>include</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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