why need array_values( ) in php code example

Example 1: array values php

<?php
  
$array = array("size" => "XL", "color" => "gold");

print_r(array_values($array));

?>

Example 2: php array_values

<?php
$array = array("size" => "XL", "color" => "gold");
print_r(array_values($array));
?>
// ["XL","gold"]