- array_reverse: documentation ( source)
- print_r: documentation ( source)
<?php
$arr1= array("name"=>"sam", "add"=> "bangalore", "country"=> "India");
$arr2= array("name"=>"sur", "add"=> "chennai", "country"=> "India");
$union_arr=$arr1 + $arr2;
print_r(array_reverse($union_arr));
?>