3v4l.org

run code in 300+ PHP versions simultaneously
<?php $_REQUEST["name"] = [ null, "myName", " ", "test1" ]; $_REQUEST["email"] = [ null, "myEmail", "" ]; $keys = [ "name", "email" ]; $result = array_map(function ($x) { if (is_array($x)) { return array_filter($x, function($y){ return null !== $y && "" !== trim($y); }); } return $x; }, array_intersect_key($_REQUEST, array_flip($keys))); print_r($result);

preferences:
36.72 ms | 410 KiB | 5 Q