3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump((0 == "thing")); var_dump(("thing" == 0)); var_dump((int) 'string'); var_dump((int) 'string1'); var_dump((int) '1string'); var_dump((int) '0x011');
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
bool(false) bool(false) int(0) int(0) int(1) int(0)
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, 5.6.8 - 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
bool(true) bool(true) int(0) int(0) int(1) int(0)

preferences:
241.98 ms | 404 KiB | 322 Q