<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.9 $ -->
<!-- splitted from ./en/functions/filesystem.xml, last change in rev 1.2 -->
  <refentry id="function.is-dir">
   <refnamediv>
    <refname>is_dir</refname>
    <refpurpose>Tells whether the filename is a directory</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>bool</type><methodname>is_dir</methodname>
      <methodparam><type>string</type><parameter>filename</parameter></methodparam>
     </methodsynopsis>
    <para>
     Returns &true; if the filename exists and is a directory. If
     <parameter>filename</parameter> is a relative filename, it will be
     checked relative to the current working directory.
    </para>
    &note.clearstatcache;
    <para>
     <example>
      <title><function>is_dir</function> example</title>
      <programlisting role="php">
<![CDATA[
<?
var_dump(is_dir('a_file.txt')) . "\n";
var_dump(is_dir('bogus_dir/abc')) . "\n";

var_dump(is_dir('..')); //one dir up
?>
]]>
      </programlisting>
      <para>
       The above example will output:
      </para>
      <screen>
<![CDATA[
bool(false)
bool(false)
bool(true)
]]>
      </screen>
     </example>
    </para>    
    &tip.fopen-wrapper.stat;

    <para>
     See also <function>chdir</function>, <link linkend="class.dir">dir</link>,
     <function>opendir</function>, <function>is_file</function> and
     <function>is_link</function>.
    </para>
   </refsect1>
  </refentry>

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