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<? xml version = " one " encoding = " utf-8 " ?>

<!-- $Revision$ -->

<!-- EN-Revision: 871a231f4a1caa5fb258ae53b1bb7d1fb2a0f949 Maintainer: HonestQiao Status: ready -->

<!-- CREDITS: mowangjuanzi -->

< refentry xml : id = " function.is-dir " xmlns = " http://docbook.org/ns/docbook " >

< refnamediv >

< refname >is_dir</ refname >

< refpurpose >Judge whether the given file name is a directory</ refpurpose >

</ refnamediv >

< refsect1 role = " description " >

&reftitle.description;

< methodsynopsis >

< type >bool</ type >< methodname >is_dir</ methodname >

< methodparam >< type >string</ type >< parameter >filename</ parameter ></ methodparam >

</ methodsynopsis >

< para >

Determine whether the given file name is a directory.

</ para >

</ refsect1 >

< refsect1 role = " parameters " >

&reftitle.parameters;

< para >

< variablelist >

< varlistentry >

< term >< parameter >filename</ parameter ></ term >

< listitem >

< para >

File path, if< parameter >filename</ parameter >It is a relative file name and will be checked relative to the current working directory. If

< parameter >filename</ parameter >It is symbolic link or hard link, and then parse the link and check it. If enabled< link

linkend = " ini.open-basedir " >open_basedir</ link >, more restrictions will be applied.

</ para >

</ listitem >

</ varlistentry >

</ variablelist >

</ para >

</ refsect1 >

< refsect1 role = " returnvalues " >

&reftitle.returnvalues;

< para >

If the file name exists and is a directory, return &true; , otherwise return &false; 。

</ para >

</ refsect1 >

< refsect1 role = " errors " >

&reftitle.errors;

&fs.emits.warning.on.failure;

</ refsect1 >

< refsect1 role = " examples " >

&reftitle.examples;

< para >

< example >

< title >< function >is_dir</ function >Example</ title >

< programlisting role = " php " >

<! [CDATA[

<? php

var_dump(is_dir('a_file.txt'));

var_dump(is_dir('bogus_dir/abc'));

var_dump(is_dir('..')); // one dir up

?>

]]>

</ programlisting >

&example.outputs;

< screen >

<! [CDATA[

bool(false)

bool(false)

bool(true)

]]>

</ screen >

</ example >

</ para >

</ refsect1 >

< refsect1 role = " notes " >

&reftitle.notes;

&note.clearstatcache;

&tip.fopen-wrapper.stat;

</ refsect1 >

< refsect1 role = " seealso " >

&reftitle.seealso;

< para >

< simplelist >

< member >< function >chdir</ function ></ member >

< member >< function >dir</ function ></ member >

< member >< function >opendir</ function ></ member >

< 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

-->