3v4l.org

run code in 500+ PHP versions simultaneously
<?php $string = "ab"; list($a, $b) = $string; var_dump($a, $b);
Output for 8.5.0 - 8.5.3
Warning: Cannot use string as array in /in/7AZFZ on line 3 Warning: Cannot use string as array in /in/7AZFZ on line 3 NULL NULL
Output for 7.0.0 - 7.0.20, 7.1.0, 7.1.6 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18
NULL NULL
Output for 7.1.5

Process exited with code 137.
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 - 5.6.28
string(1) "a" string(1) "b"
preferences:
90.7 ms | 2194 KiB | 4 Q