- array_map: documentation ( source)
- var_dump: documentation ( source)
<?php
$array = [1, 2, 3, 4];
$array2 = [5, 6, 7, 8];
$function = function($array) {
if ($array == 1) {
$function($array);
}
return $array;
};
var_dump(array_map($function, $array));