3v4l.org

run code in 500+ PHP versions simultaneously
<?php $z = array("abc"); list($x, $y) = reset($z); var_dump($x, $y); list($x, $y) = "abc"; var_dump($x, $y);
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26
NULL NULL NULL NULL
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.2.2 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
string(1) "a" string(1) "b" NULL NULL
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.1
string(1) "a" string(1) "b" Fatal error: Invalid opcode 98/1/1. in /in/Ha1FX on line 4
Output for 8.5.0 - 8.5.11
Warning: Cannot use string as array in /in/Ha1FX on line 3 Warning: Cannot use string as array in /in/Ha1FX on line 3 NULL NULL Warning: Cannot use string as array in /in/Ha1FX on line 4 Warning: Cannot use string as array in /in/Ha1FX on line 4 NULL NULL
preferences:
36.05 ms | 1151 KiB | 15 Q