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<?php $a = []; $a['aaaa']['mode'] = 'test'; $a['b'] = false; $a['c'] = ''; $a['d'] = 0; $a['e'] = new \stdClass(); $a['f'] = null; var_dump('isset'); var_dump(isset($a['a'])); var_dump(isset($a['b'])); var_dump(isset($a['c'])); var_dump(isset($a['d'])); var_dump(isset($a['e'])); var_dump(isset($a['f'])); var_dump('empty'); var_dump(empty($a['a'])); var_dump(empty($a['b'])); var_dump(empty($a['c'])); var_dump(empty($a['d'])); var_dump(empty($a['e'])); var_dump(empty($a['f']));
Output for git.master, git.master_jit, rfc.property-hooks
string(5) "isset" bool(false) bool(true) bool(true) bool(true) bool(true) bool(false) string(5) "empty" bool(true) bool(true) bool(true) bool(true) bool(false) bool(true)

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