filemtime

(PHP 4, PHP 5, PHP 7)

Gets file modification time

int filemtime ( string $filename )

This function returns the time when the data blocks of a file were being written to, that is, the time when the content of the file was changed.

Parameters:

filename

Path to the file.

Returns:

Returns the time the file was last modified, or FALSE on failure. The time is returned as a Unix timestamp, which is suitable for the date() function.

Exception:

Upon failure, an E_WARNING is emitted.

Notes:

Note that time resolution may differ from one file system to another.

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

Examples:

filemtime() example

<?php
// outputs e.g.  somefile.txt was last modified: December 29 2002 22:16:23.

$filename = 'somefile.txt';
if (file_exists($filename)) {
    echo "$filename was last modified: " . date ("F d Y H:i:s.", filemtime($filename));
}
?>