If you do use:
<?php
$filename = 'somefile.txt';
$fmtime = filemtime($filename);
if (!$fmtime) {
echo "$filename wurde zuletzt modifiziert:: " . date ("F d Y H:i:s.", $fmtime);
}
?>
Make note that it will throw a warning as the documentation states. While tobias makes a good point for production, when error reporting is off, this can increase your performance over using `file_exists`. However, if error reporting is on and it's writing to a log... this is not the case. Obviously this varies on sever specs and the size of the error log. For most cases, it's still ideal to use the `file_exists` method.
