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run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); round(null, 2);
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 TypeError: round(): Argument #1 ($num) must be of type int|float, null given in /in/iAprj:5 Stack trace: #0 /in/iAprj(5): round(NULL, 2) #1 {main} thrown in /in/iAprj on line 5
Process exited with code 255.
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33

preferences:
171.32 ms | 402 KiB | 158 Q