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<?php $arr = array('test' => array('percy' => array('hello' => 'hatcherson'), 'percy' => array('mitchell', 'anderson'))); $allowed = array('percy'); $combined = array(); $combined[] = array_intersect_key($arr, array_flip($allowed)); foreach ($arr as $k => $v) { if (is_array($v)) { $combined[] = array_intersect_key($arr[$k], array_flip($allowed)); } } var_dump($combined);
Output for 5.1.0 - 7.1.0
array(2) { [0]=> array(0) { } [1]=> array(1) { ["percy"]=> array(2) { [0]=> string(8) "mitchell" [1]=> string(8) "anderson" } } }
Output for 5.0.0 - 5.0.5
Fatal error: Call to undefined function array_intersect_key() in /in/oCiG7 on line 8
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_intersect_key() in /in/oCiG7 on line 8
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: array_intersect_key() in /in/oCiG7 on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_intersect_key() in /in/oCiG7 on line 8