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<?php function secondsFromTime($time) { list($hours, $minutes, $seconds) = sscanf($time, "%d:%d:%d"); return $hours * 3600 + $minutes * 60 + (isset($seconds) ? $seconds : 0); } var_dump(secondsFromTime('0:01')); var_dump(secondsFromTime('0:01:01')); var_dump(secondsFromTime('1:01')); var_dump(secondsFromTime('1:01:01')); var_dump(secondsFromTime('01:01')); var_dump(secondsFromTime('01:01:01'));
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
int(60) int(61) int(3660) int(3661) int(3660) int(3661)

preferences:
256.63 ms | 406 KiB | 460 Q