Online PHP editor | refs for im0pY

<?php function merge(array $a, array $b) { foreach ($b as $key => $value) { if (array_key_exists($key, $a)) { if (is_int($key)) { $a[] = $value; } elseif (is_array($value) && is_array($a[$key])) { $a[$key] = merge($a[$key], $value); } else { $a[$key] = $value; } } else { $a[$key] = $value; } } return $a; } $a = array('person' => array( 'name' => 'franz', 'last_name' => 'de leon', )); $b = array('person' => array( 'name' => 'cheryl', )); var_dump(merge($a, $b));