Reverse array values while keeping keys

$a = array('a' => 'a1', 'b' => 'a2', 'c' => 'a3', 'd' => 'a4', 'e' => 'a5'); $k = array_keys($a);$v = array_values($a); $rv = array_reverse($v); $b = array_combine($k, $rv); var_dump($b);

Result: 

array(5) { 'a' => string(2) "a5" 'b' => string(2) "a4" 'c' => string(2) "a3" 'd' => string(2) "a2" 'e' => string(2) "a1"}