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<?php $bool = false; $int = 0; echo 'is ', var_export($bool, true), ' == ', var_export($int, true), ' ? ', var_export($bool == $int), "\n"; $bools = (string)$bool; echo 'is ', var_export($bools, true), ' == ', var_export($bool, true), ' ? ', var_export($bools == $bool), "\n"; $int = (int)$str; echo 'is ', var_export($int, true), ' empty? ', var_export(empty($int)), "\n";
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
is false == 0 ? true is '' == false ? true Warning: Undefined variable $str in /in/IFpke on line 9 is 0 empty? true
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
is false == 0 ? true is '' == false ? true Notice: Undefined variable: str in /in/IFpke on line 9 is 0 empty? true
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, 7.3.32 - 7.3.33, 7.4.26
is false == 0 ? true is '' == false ? true is 0 empty? true

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303.86 ms | 403 KiB | 388 Q