Fatal error: Uncaught TypeError: strtotime(): Argument #2 ($baseTimestamp) must be of type ?int, string given in /in/v66nd:3
Stack trace:
#0 /in/v66nd(3): strtotime('+30 minutes', '2015-04-13 10:1...')
#1 {main}
thrown in /in/v66nd on line 3
Process exited with code 255.
Output for 8.0.13
Fatal error: Uncaught TypeError: strtotime(): Argument #2 ($baseTimestamp) must be of type ?int, string given in /in/v66nd:3
Stack trace:
#0 /in/v66nd(3): strtotime('+30 minutes', '2015-04-13 08:1...')
#1 {main}
thrown in /in/v66nd on line 3
Process exited with code 255.