3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { function bar($derp, /*array*/ $array, $is_recursive = false) { if (is_bool($array)) { $is_recursive = $array; $array = array(); } var_dump(is_recursive); } } $d = new Foo; $d->bar('derp', true);
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 Error: Undefined constant "is_recursive" in /in/CEPWv:8 Stack trace: #0 /in/CEPWv(12): Foo->bar('derp', Array) #1 {main} thrown in /in/CEPWv on line 8
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant is_recursive - assumed 'is_recursive' (this will throw an Error in a future version of PHP) in /in/CEPWv on line 8 string(12) "is_recursive"
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.31, 7.1.0 - 7.1.23
Notice: Use of undefined constant is_recursive - assumed 'is_recursive' in /in/CEPWv on line 8 string(12) "is_recursive"
preferences:
262.56 ms | 404 KiB | 417 Q