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 performancewise 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.
The results of this function are cached. See clearstatcache() for more details.
This function will not work on remote files as the file to be examined must be accessible via the servers filesystem.
<?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().
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