Online PHP editor | output for Wi5h9

<?php function getValues(&$egElement, $property, $option = NULL) { if(is_array($egElement) === FALSE) { return array(); } if(is_int($option) and $option > 1) { $values = array(); foreach($egElement as $key => $egSubElement) { $values = array_merge( $values, getValues($egSubElement, $property, $option - 1) ); } return $values; } if( is_string($option) or $option === TRUE ) { $values = array(); foreach($egElement as $key => $eElement) { if(array_key_exists($property, $eElement)) { if(is_string($option)) { $values[$key] = call_user_func_array($option, array($eElement[$property])); } else if($option === TRUE) { $values[$key] = &$egElement[$key][$property]; } } } reset($egElement); } else { return array_column($egElement, $property); } return $values; } $eg = array( 1 => array('id' => 4, 'dragon' => array('toto' => 5, 'titi' => 6)), 2 => array('id' => 5, 'dragon' => array('toto' => 5, 'titi' => 6)), 3 => array('id' => 6, 'dragon' => array('toto' => 5, 'titi' => 6)), 4 => array('id' => 7, 'dragon' => array('toto' => 5, 'titi' => 6)), 5 => array('id' => 8, 'dragon' => array('toto' => 5, 'titi' => 6)), 6 => array('id' => 9, 'dragon' => array('toto' => 5, 'titi' => 6)), 7 => array('id' => 10, 'dragon' => array('toto' => 5, 'titi' => 6)), 8 => array('id' => 11, 'dragon' => array('toto' => 5, 'titi' => 6)), ); var_dump(getValues($eg, 'dragon'));