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<?php $array = array(null, false, 0, array(), 'false'); foreach ($array as $heru) { echo '!Isset: ' . (!isset($heru) ? 'True' : 'False') . PHP_EOL; echo '!: ' . (!$heru ? 'True' : 'False') . PHP_EOL; echo 'empty: ' . (empty($heru) ? 'True' : 'False') . PHP_EOL; }
Output for git.master, git.master_jit, rfc.property-hooks
!Isset: True !: True empty: True !Isset: False !: True empty: True !Isset: False !: True empty: True !Isset: False !: True empty: True !Isset: False !: False empty: False

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