getlastmod

Gets the time of the last modification of the main script of execution.

If you're interested in getting the last modification time of a different file, consider using filemtime().

Returns the time of the last modification of the current page. The value returned is a Unix timestamp, suitable for feeding to date(). Returns FALSE on error.

<?php
// outputs e.g. 'Last modified: March 04 1998 20:43:59.'
echo "Last modified: " . date ("F d Y H:i:s.", getlastmod());
?>

date() -

getmyuid() -

getmygid() -

get_current_user() -

getmyinode() -

getmypid() -

filemtime() -