3v4l.org

run code in 300+ PHP versions simultaneously
<?php $q1 = true or false; $q2 = true and false; $q3 = false and false; $q3 = false or false; var_dump($q1); var_dump($q2); var_dump($q3); var_dump($q4);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
bool(true) bool(true) bool(false) Warning: Undefined variable $q4 in /in/pMVqB on line 13 NULL
Output for 5.0.4 - 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 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
bool(true) bool(true) bool(false) Notice: Undefined variable: q4 in /in/pMVqB on line 13 NULL
Output for 7.3.32 - 7.3.33
bool(true) bool(true) bool(false) NULL
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
bool(true) bool(true) bool(false) Notice: Undefined variable: q4 in /in/pMVqB on line 13 NULL
preferences:
262.53 ms | 402 KiB | 451 Q