3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=0); function test(string $s) {var_dump($s);} test(NULL);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Fatal error: Uncaught TypeError: test(): Argument #1 ($s) must be of type string, null given, called in /in/oneIj on line 3 and defined in /in/oneIj:3 Stack trace: #0 /in/oneIj(3): test(NULL) #1 {main} thrown in /in/oneIj on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Argument 1 passed to test() must be of the type string, null given, called in /in/oneIj on line 3 and defined in /in/oneIj:3 Stack trace: #0 /in/oneIj(3): test(NULL) #1 {main} thrown in /in/oneIj on line 3
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Warning: Unsupported declare 'strict_types' in /in/oneIj on line 3 Catchable fatal error: Argument 1 passed to test() must be an instance of string, null given, called in /in/oneIj on line 3 and defined in /in/oneIj on line 3
Process exited with code 255.

preferences:
233.26 ms | 403 KiB | 378 Q