3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'oh loooong jhonson, miiiiauuu miiiaaaau'; for($i=0; $i < 10000; $i++) { preg_match('/miaau/', $string, array()); }
Output for 8.3.0 - 8.3.6
Fatal error: Uncaught Error: preg_match(): Argument #3 ($matches) could not be passed by reference in /in/f1AP7:6 Stack trace: #0 {main} thrown in /in/f1AP7 on line 6
Process exited with code 255.
Output for 8.1.23 - 8.1.28, 8.2.10 - 8.2.18
Fatal error: Uncaught Error: preg_match(): Argument #3 ($matches) cannot be passed by reference in /in/f1AP7:6 Stack trace: #0 {main} thrown in /in/f1AP7 on line 6
Process exited with code 255.
Output for 4.3.2 - 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 - 5.4.32
Fatal error: Only variables can be passed by reference in /in/f1AP7 on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Only variables can be passed by reference in /in/f1AP7 on line 6
preferences:
134.16 ms | 401 KiB | 143 Q