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Gets last access time of file (PHP 4, PHP 5)
int fileatime ( string filename )

Gets the last access time of the given file.



Path to the file.

Return Values

Returns the time the file was last accessed, or FALSE in case of an error. The time is returned as a Unix timestamp.


Example 631. fileatime() example


// outputs e.g.  somefile.txt was last accessed: December 29 2002 22:16:23.

$filename = 'somefile.txt';
if (
file_exists($filename)) {
"$filename was last accessed: " . date("F d Y H:i:s.", fileatime($filename));




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.


The results of this function are cached. See clearstatcache() for more details.


As of PHP 5.0.0 this function can also be used with some URL wrappers. Refer to Appendix O, List of Supported Protocols/Wrappers for a listing of which wrappers support stat() family of functionality.