php-doc-en/reference/filesystem/functions/filemtime.xml
2003-11-29 16:39:55 +00:00

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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.5 $ -->
<!-- splitted from ./en/functions/filesystem.xml, last change in rev 1.2 -->
<refentry id="function.filemtime">
<refnamediv>
<refname>filemtime</refname>
<refpurpose>Gets file modification time</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>int</type><methodname>filemtime</methodname>
<methodparam><type>string</type><parameter>filename</parameter></methodparam>
</methodsynopsis>
<para>
Returns the time the file was last modified, or &false; in case of
an error. The time is returned as a Unix timestamp, which is
suitable for the <function>date</function> function.
</para>
&note.clearstatcache;
&tip.fopen-wrapper.stat;
<para>
This function returns the time when the data
blocks of a file were being written to, that is, the time
when the content of the file was changed.
</para>
<para>
<example>
<title><function>filemtime</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
// outputs e.g. somefile.txt was last modified: December 29 2002 22:16:23.
$filename = 'somefile.txt';
if (file_exists($filename)) {
echo "$filename was last modified: " . date ("F d Y H:i:s.", filemtime($filename));
}
?>
]]>
</programlisting>
</example>
</para>
<para>
See also <function>filectime</function>, <function>stat</function>,
<function>touch</function>, and <function>getlastmod</function>.
</para>
</refsect1>
</refentry>
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