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<?php $testArray = array( 'percy' => array( 'philip' => array( 'mitch' => array( 'percy' => 'hatcherson', 'mitch' => 'anderson' ) ), 'mitch' => array( 'mitchell', 'anderson', 'percy' => array( 'percy', 'hatcherson' ), 'mitchell' => 'thomas mitchell anderson', 'percy' => 'percy philip hatcherson' ) ) ); $newArray = array(); function recursiveArrayColumn ($array, $index, $helper = array()) { $helper = array_column($array, $index); foreach ($array as $k => $v) { if (is_array($v)) { $helper[$index] = recursiveArrayColumn($v, $index, $helper); } } return $helper; } var_dump(recursiveArrayColumn($testArray, 'percy'));
Output for 5.5.0 - 7.1.0
array(1) { ["percy"]=> array(2) { [0]=> string(23) "percy philip hatcherson" ["percy"]=> array(0) { } } }
Output for 5.0.0 - 5.4.45
Fatal error: Call to undefined function array_column() in /in/GQg3h on line 28
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_column() in /in/GQg3h on line 28
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: array_column() in /in/GQg3h on line 28
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_column() in /in/GQg3h on line 28