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<?php $a = array( '' => 'foo', 'foo' => '', null, array(), 1, true, false, ); foreach($a as $k => $v) { echo "$k => $v\n"; var_dump(!empty($a[$k])); var_dump(isset($a[$k]) && $a[$k]); }
Output for git.master, git.master_jit, rfc.property-hooks
=> foo bool(true) bool(true) foo => bool(false) bool(false) 0 => bool(false) bool(false) Warning: Array to string conversion in /in/u3cvg on line 13 1 => Array bool(false) bool(false) 2 => 1 bool(true) bool(true) 3 => 1 bool(true) bool(true) 4 => bool(false) bool(false)

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