Description
int
fileatime ( string filename )
Returns the time the file was last accessed, or FALSE in case of
an error. The time is returned as a Unix timestamp.
Note: The atime of a file is supposed to change whenever
the data blocks of a file are being read. This can be
costly performance-wise when an application regularly
accesses a very large number of files or directories. Some
Unix filesystems can be mounted with atime updates disabled
to increase the performance of such applications; USENET
news spools are a common example. On such filesystems
this function will be useless.
Note: The results of this
function are cached. See clearstatcache() for
more details.
Tip: As of PHP 5.0.0 this function
can also be used with some URL wrappers. Refer to
Appendix L for a listing of which wrappers support
stat() family of functionality.
Example 1. fileatime() example
<?php
// outputs e.g. somefile.txt was last accessed: December 29 2002 22:16:23.
$filename = 'somefile.txt';
if (file_exists($filename)) {
echo "$filename was last accessed: " . date("F d Y H:i:s.", fileatime($filename));
}
?>
|
|
See also filemtime(),
fileinode(), and
date().
