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<?php $bool = false; echo 'is ', var_export($bool, true), ' empty? ', var_export(empty($bool)), "\n"; $str = (string)$bool; echo 'is ', var_export($str, true), ' empty? ', var_export(empty($str)), "\n"; $bool = (bool)$str; echo 'is ', var_export($bool, true), ' empty? ', var_export(empty($bool)), "\n";
Output for 4.3.0 - 7.1.0
is false empty? true is '' empty? true is false empty? true