filemtime
(PHP 4, PHP 5)
filemtime — Gets file modification time
Description
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.
Return values
Returns the time the file was last modified, or FALSE in case of an error. The time is returned as a Unix timestamp, which is suitable for the date() function.
Examples
Example#1 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));
}
?>
Notes
Note: Tämän funktion tulokset tallennetaan välimuistiin. Katso tarkemmat tiedot clearstatcache() sivulta.
Tip
PHP 5.0.0 versiosta lähtien tämä funktio tukee myös joitakin URL tyyppejä. Katso myös List of Supported Protocols/Wrappers.