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<?php function coolPluck($array, $lookup) { $output = array(); foreach($array as $k => $v) { if($k === $lookup) { $output[$k] = $v; } if(is_array($v)) { $results = coolPluck($v, $lookup); if(isset($results[$lookup]) && isset($output[$lookup])) { if (is_array($output)) { $output[$lookup] = array_merge($output[$lookup], $results[$lookup]); } else { $output[$lookup] = array($output[$lookup], $results[$lookup]); } } else { $output = $output + $results; } } } return $output; } $testArray = array('test' => array('percy' => array('percy' => 'hatcherson'), 'percy' => array('mitchell', 'anderson'))); var_dump(coolPluck($testArray, 'percy'));
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { ["percy"]=> array(2) { [0]=> string(8) "mitchell" [1]=> string(8) "anderson" } }

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