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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.24 $ -->
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.stat">
<refnamediv>
<refname>stat</refname>
<refpurpose>Gives information about a file</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>array</type><methodname>stat</methodname>
<methodparam><type>string</type><parameter>filename</parameter></methodparam>
</methodsynopsis>
<para>
Gathers the statistics of the file named by
<parameter>filename</parameter>. If <parameter>filename</parameter> is a
symbolic link, statistics are from the file itself, not the symlink.
</para>
<para>
<function>lstat</function> is identical to <function>stat</function>
except it would instead be based off the symlinks status.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>filename</parameter></term>
<listitem>
<para>
Path to the file.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
<table>
<title><function>stat</function> and <function>fstat</function> result
format</title>
<tgroup cols="3">
<thead>
<row>
<entry>Numeric</entry>
<entry>Associative (since PHP 4.0.6)</entry>
<entry>Description</entry>
</row>
</thead>
<tbody>
<row>
<entry>0</entry>
<entry>dev</entry>
<entry>device number</entry>
</row>
<row>
<entry>1</entry>
<entry>ino</entry>
<entry>inode number *</entry>
</row>
<row>
<entry>2</entry>
<entry>mode</entry>
<entry>inode protection mode</entry>
</row>
<row>
<entry>3</entry>
<entry>nlink</entry>
<entry>number of links</entry>
</row>
<row>
<entry>4</entry>
<entry>uid</entry>
<entry>userid of owner *</entry>
</row>
<row>
<entry>5</entry>
<entry>gid</entry>
<entry>groupid of owner *</entry>
</row>
<row>
<entry>6</entry>
<entry>rdev</entry>
<entry>device type, if inode device</entry>
</row>
<row>
<entry>7</entry>
<entry>size</entry>
<entry>size in bytes</entry>
</row>
<row>
<entry>8</entry>
<entry>atime</entry>
<entry>time of last access (Unix timestamp)</entry>
</row>
<row>
<entry>9</entry>
<entry>mtime</entry>
<entry>time of last modification (Unix timestamp)</entry>
</row>
<row>
<entry>10</entry>
<entry>ctime</entry>
<entry>time of last inode change (Unix timestamp)</entry>
</row>
<row>
<entry>11</entry>
<entry>blksize</entry>
<entry>blocksize of filesystem IO **</entry>
</row>
<row>
<entry>12</entry>
<entry>blocks</entry>
<entry>number of blocks allocated **</entry>
</row>
</tbody>
</tgroup>
</table>
* On Windows this will always be 0.
</para>
<para>
** Only valid on systems supporting the st_blksize type - other
systems (e.g. Windows) return -1.
</para>
<para>
In case of error, <function>stat</function> returns &false;.
</para>
</refsect1>
<refsect1 role="errors">
&reftitle.errors;
<para>
Upon failure, an <constant>E_WARNING</constant> is emitted.
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>4.0.6</entry>
<entry>
In addition to returning these attributes in a numeric array, they
can be accessed with associative indices, as noted next to each
parameter
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>stat</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
/* Get file stat */
$stat = stat('C:\php\php.exe');
/*
* Print file access file, this is the same
* as calling fileatime()
*/
echo 'Access time: ' . $stat['atime'];
/*
* Print file modification time, this is the
* same as calling filemtime()
*/
echo 'Modification time: ' . $stat['mtime'];
/* Print the device number */
echo 'Device number: ' . $stat['dev'];
]]>
</programlisting>
</example>
</para>
<para>
<example>
<title>Using <function>stat</function> information together with <function>touch</function></title>
<programlisting role="php">
<![CDATA[
<?php
/* Get file stat */
$stat = @stat('C:\php\php.exe');
/* Did we failed to get stat information ? */
if(!$stat)
{
echo 'Stat call failed...';
}
else
{
/*
* We want the access time to be 1 week
* before the current access time.
*/
$atime = $stat['atime'] + 604800;
/* Touch the file */
if(!@touch('some_file.txt', time(), $atime))
{
echo 'Failed to touch file...';
}
else
{
echo 'Touch returned success...';
}
}
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
¬e.filesystem-time-res;
¬e.clearstatcache;
&tip.fopen-wrapper.stat;
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>lstat</function></member>
<member><function>fstat</function></member>
<member><function>filemtime</function></member>
<member><function>filegroup</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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