filemtime
(PHP 4, PHP 5)
filemtime — Gets file modification time
Beskrivelse
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.
Parameterliste
- filename
-
Path to the file.
Returneringsværdier
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.
Eksempler
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: Resultatet af denne funktion er cached. Se clearstatcache() for flere detaljer.
Tip
Fra og med PHP 5.0.0 kan denne funktion også bruges med nogle URL wrappers. Se List of Supported Protocols/Wrappers for en liste over hvilke wrappers understøtter stat() familiens funktionalitet.