3v4l.org

run code in 300+ PHP versions simultaneously
<?php function update_hook(): \Stringable|string|null|none { echo "123"; } update_hook();
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
123 Fatal error: Uncaught TypeError: update_hook(): Return value must be of type Stringable|none|string|null, none returned in /in/LQPcN:5 Stack trace: #0 /in/LQPcN(6): update_hook() #1 {main} thrown in /in/LQPcN on line 5
Process exited with code 255.

preferences:
80.8 ms | 407 KiB | 5 Q