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is-executable.xml
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121 lines (111 loc) · 3.08 KB
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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: 8d8cd43bfcd67415f3d548b7209c5b1a63d88fd1 Maintainer: HonestQiao Status: ready -->
<!-- CREDITS: mowangjuanzi -->
<refentry xml:id="function.is-executable" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>is_executable</refname>
<refpurpose>判断给定文件名是否可执行</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>is_executable</methodname>
<methodparam><type>string</type><parameter>filename</parameter></methodparam>
</methodsynopsis>
<para>
判断给定文件名是否可执行。
</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>
如果文件存在且可执行则返回 &true;,错误时返回 &false;。在 POSIX
系统中,如果设置了文件权限的可执行位,则文件可执行。对于 Windows,请参阅下面的注释。
</para>
</refsect1>
<refsect1 role="errors">
&reftitle.errors;
&fs.emits.warning.on.failure;
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>is_executable</function> 例子</title>
<programlisting role="php">
<![CDATA[
<?php
$file = '/home/vincent/somefile.sh';
if (is_executable($file)) {
echo $file.' is executable';
} else {
echo $file.' is not executable';
}
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
¬e.clearstatcache;
&tip.fopen-wrapper.stat;
<note>
<simpara>
在 Windows 上,如果文件是 Win API <literal>GetBinaryType()</literal>
报告的正确可执行文件,则该文件视为可执行文件;由于 BC 原因,扩展名是
<filename>.bat</filename> 或 <filename>.cmd</filename>
的文件也被视为可执行文件。在 PHP 7.4.0 之前,任何扩展名是
<filename>.bat</filename> 或 <filename>.cmd</filename>
的非空文件都被视为可执行文件。注意 <envar>PATHEXT</envar> 与
<function>is_executable</function> 无关。
</simpara>
</note>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>is_file</function></member>
<member><function>is_link</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:"~/.phpdoc/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
-->