fileatime
Gets last access time of file
Description
int fileatime
( string $filename
)
Gets the last access time of the given file.
Parameters
-
filename
-
Path to the file.
Return Values
Returns the time the file was last accessed, or FALSE on failure.
The time is returned as a Unix timestamp.
Examples
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));
}
?>
Errors/Exceptions
Upon failure, an E_WARNING is emitted.
Notes
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:
Note that time resolution may differ
from one file system to another.
Note: The results of this
function are cached. See clearstatcache for
more details.
TipAs of PHP 5.0.0, this function
can also be used with some URL wrappers. Refer to
Supported Protocols and Wrappers to determine which wrappers support
stat family of functionality.