How to get video duration in seconds? [duplicate]

Answer 1

Its Working for me try it :)

$duration = shell_exec("ffmpeg -i \"". $input . "\" 2>&1");

preg_match("/Duration: (\d{2}:\d{2}:\d{2}\.\d{2})/",$duration,$matches);
$time = explode(':',$matches[1]);
$hour = $time[0];
$minutes = $time[1];
$seconds = round($time[2]);

$total_seconds = 0;
$total_seconds += 60 * 60 * $hour;
$total_seconds += 60 * $minutes;
echo $total_seconds += $seconds;

Answer 2

There is a better, faster and low CPU/HD footprint solution, just with mediainfo without relying into awk:

mediainfo --Inform="General;%Duration%" input.m4v