3v4l.org

run code in 300+ PHP versions simultaneously
<?php $_GET['week_of']=20151116; if(isset($_GET['week_of'])&&preg_match('/^[0-9]{8}$/',$_GET['week_of'])){ $week_of=DateTime::createFromFormat('Ymd',$_GET['week_of']); }else{ $week_of=0; } echo $week_of;
Output for 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
Fatal error: Uncaught Error: Object of class DateTime could not be converted to string in /in/bAWKk:8 Stack trace: #0 {main} thrown in /in/bAWKk on line 8
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Recoverable fatal error: Object of class DateTime could not be converted to string in /in/bAWKk on line 8
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33
Catchable fatal error: Object of class DateTime could not be converted to string in /in/bAWKk on line 8
Process exited with code 255.

preferences:
218.8 ms | 402 KiB | 330 Q