is-link.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: 7c9f1adb4b7d55a7a37b0503ec895412a6ecc656 Maintainer: HonestQiao Status: ready -->
<!-- CREDITS: mowangjuanzi, Luffy -->
<refentry xml:id="function.is-link" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>is_link</refname>
  <refpurpose>判断给定文件名是否为一个符号连接</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>is_link</methodname>
   <methodparam><type>string</type><parameter>filename</parameter></methodparam>
  </methodsynopsis>
  <para>
   判断给定文件名是否为一个符号连接。
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>filename</parameter></term>
     <listitem>
      <para>
       文件的路径。
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   如果文件存在并且是一个符号连接则返回 &true;，否则返回 &false;。
  </para>
 </refsect1>

 <refsect1 role="errors">
  &reftitle.errors;
  &fs.emits.warning.on.failure;
 </refsect1>
 
 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>创建并确认一个文件是否为符号连接</title>
    <programlisting role="php">
<![CDATA[
<?php
$link = 'uploads';

if (is_link($link)) {
    echo readlink($link);
} else {
    symlink('uploads.php', $link);
}
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

 <refsect1 role="notes">
  &reftitle.notes;
  &note.clearstatcache;
  &tip.fopen-wrapper.stat;
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>is_dir</function></member>
    <member><function>is_file</function></member>
    <member><function>readlink</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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