3v4l.org

run code in 300+ PHP versions simultaneously
<?php $lall = true; if ($lall != false) { echo "jep0\n"; } else { echo "nop\n"; } if ($lall != 0) { echo "jep1\n"; } else { echo "nop1\n"; } if ($lall != '0') { echo "jep2\n"; } else { echo "nop2\n"; }
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
jep0 jep1 jep2
preferences:
53.83 ms | 406 KiB | 5 Q