3v4l.org

run code in 300+ PHP versions simultaneously
<?php if ($foo = 'bar' && 'bar' === $foo) { var_dump('Yep!'); } else { var_dump('WUT?'); }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
Warning: Undefined variable $foo in /in/CQtij on line 3 string(4) "WUT?"
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 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: foo in /in/CQtij on line 3 string(4) "WUT?"
Output for 7.3.32 - 7.3.33
string(4) "WUT?"
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: foo in /in/CQtij on line 3 string(4) "WUT?"
preferences:
171.57 ms | 410 KiB | 5 Q