3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump('' == 0, '' == false, '' == null, null == array()); echo "\n"; var_dump('' === 0, '' === false, '' === null, null === array());
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(false) bool(true) bool(true) bool(true) bool(false) bool(false) bool(false) bool(false)
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
bool(true) bool(true) bool(true) bool(true) bool(false) bool(false) bool(false) bool(false)
preferences:
278.28 ms | 403 KiB | 291 Q