convert associative array to multidimensional

[Homer5]

this is my solution:

$x = ['a' => 2, 'b' => 1, 'c' => 4, 'd' => 1];

$x1 = array_keys($x);
$x2 = array_values($x);

$z = [];
for ($i=0; $i<count($x); $i++) {
  array_push($z, [$x1[$i],$x2[$i]] );
} 

print_r($z); //[['a', 2], ['b', 1], ['c', 4], ['d', 1]];

is there easier (more elegant) way to do the same ?

 

 

[Barand]

foreach ($x as $k => $v) {

    $z[] = [$k,$v];

}

[Homer5]

yep, that's much better ... thanks