3v4l.org

run code in 300+ PHP versions simultaneously
<?php list ($a, $b) = [1,]; var_dump($a); var_dump($b);
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
Warning: Undefined array key 1 in /in/vlQHn on line 3 int(1) NULL
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined offset: 1 in /in/vlQHn on line 3 int(1) NULL
Output for 7.3.32 - 7.3.33
int(1) NULL

preferences:
149.85 ms | 401 KiB | 184 Q