3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = strtotime("H:i","2016-10-1 15:50:00"); $b = strtotime("H:i","2016-10-1 18:15:00"); echo $a . $b; echo date("H:i:s",$b-$a); ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: strtotime(): Argument #2 ($baseTimestamp) must be of type ?int, string given in /in/6ccWQ:3 Stack trace: #0 /in/6ccWQ(3): strtotime('H:i', '2016-10-1 15:50...') #1 {main} thrown in /in/6ccWQ on line 3
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: A non well formed numeric value encountered in /in/6ccWQ on line 3 Notice: A non well formed numeric value encountered in /in/6ccWQ on line 4 01:00:00
Output for 7.3.32 - 7.3.33
00:00:00
preferences:
202.64 ms | 401 KiB | 293 Q