Description:
------------
Two PHP functions that replicate the MySQL functions of the same name.  These may be useful to other people given how popular the combination of PHP and MySQL is.

Reproduce code:
---------------
function time_to_sec($time) {
	$hours = substr($time, 0, -6);
	$minutes = substr($time, -5, 2);
	$seconds = substr($time, -2);

	return $hours * 3600 + $minutes * 60 + $seconds;
}

function sec_to_time($seconds) {
	$hours = floor($seconds / 3600);
	$minutes = floor($seconds % 3600 / 60);
	$seconds = $seconds % 60;

	return sprintf("%d:%02d:%02d", $hours, $minutes, $seconds);
}