filemtime
(PHP 3, PHP 4 )
filemtime -- Gets file modification time
Description
int filemtime ( string filename)
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.
Note: The results of this function are cached. See clearstatcache()
for more details.
Tip: As of PHP 5.0.0 this function can also be used with
some URL wrappers. Refer to Appendix J for a listing of
which wrappers support stat() family of functionality.
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.
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));
}
?>
See also filectime(), stat(), touch(), and getlastmod().
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