3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); $a = false; $b = $a['a']; var_dump($a, $b);
Output for 8.3.0 - 8.3.7
Warning: Trying to access array offset on false in /in/KC54j on line 4 bool(false) NULL
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Warning: Trying to access array offset on value of type bool in /in/KC54j on line 4 bool(false) NULL
Output for 7.4.0 - 7.4.33
Notice: Trying to access array offset on value of type bool in /in/KC54j on line 4 bool(false) NULL
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 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.12 - 7.3.33
bool(false) NULL
preferences:
208.6 ms | 405 KiB | 345 Q