3v4l.org

run code in 300+ PHP versions simultaneously
<?php print('TRUE == "wat" : '); var_dump(TRUE == "wat"); print(' "wat" == 0 : '); var_dump("foo" == 0); print(' TRUE == 0 : '); var_dump(TRUE == 0);
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
TRUE == "wat" : bool(true) "wat" == 0 : bool(false) TRUE == 0 : bool(false)
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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
TRUE == "wat" : bool(true) "wat" == 0 : bool(true) TRUE == 0 : bool(false)
preferences:
276.47 ms | 405 KiB | 329 Q