3v4l.org

run code in 300+ PHP versions simultaneously
<?php $bool = false; $int = 0; echo 'is ', var_export($bool, true), ' == ', var_export($int, true), ' ? ', var_export($bool == $int, true), "\n"; $bools = (string)$bool; echo 'is ', var_export($bools, true), ' == ', var_export($bool, true), ' ? ', var_export($bools == $bool, true), "\n"; $ints = (string)$int; echo 'is ', var_export($ints, true), ' == ', var_export($int, true), ' ? ', var_export($ints == $int, true), "\n"; echo 'is ', var_export($bools, true), ' == ', var_export($ints, true), ' ? ', var_export($bools == $ints, true), "\n";
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, 5.5.0 - 5.5.38, 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, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
is false == 0 ? true is '' == false ? true is '0' == 0 ? true is '' == '0' ? false

preferences:
298.14 ms | 405 KiB | 456 Q