3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = object; echo is_object($a->b);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught Error: Undefined constant "object" in /in/N9LHR:2 Stack trace: #0 {main} thrown in /in/N9LHR on line 2
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Warning: Use of undefined constant object - assumed 'object' (this will throw an Error in a future version of PHP) in /in/N9LHR on line 2 Notice: Trying to get property 'b' of non-object in /in/N9LHR on line 3
Output for 7.3.32 - 7.3.33
Warning: Use of undefined constant object - assumed 'object' (this will throw an Error in a future version of PHP) in /in/N9LHR on line 2
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25
Notice: Use of undefined constant object - assumed 'object' in /in/N9LHR on line 2 Notice: Trying to get property of non-object in /in/N9LHR on line 3
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
Notice: Use of undefined constant object - assumed 'object' in /in/N9LHR on line 2

preferences:
241.54 ms | 401 KiB | 325 Q