3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $chat_session = "1449675645"; $ts = "15:40:50"; // 5 segundos de diferencia $datetime = date('Y-m-d', $chat_session) . " " . $ts; //date_default_timezone_set('GMT'); $datetime_unix = strtotime($datetime); $segundos = (int)$datetime_unix - (int)$chat_session; echo "inicio : $chat_session\n"; echo "respuesta : $datetime_unix\n"; echo "diferencia seg : $segundos";
based on lVSks
Output for 5.5.0 - 7.2.0
inicio : 1449675645 respuesta : 1449672050 diferencia seg : -3595