1--TEST--
2Pass same variable by ref and by value.
3--FILE--
4<?php
5function valRef($x, &$y) {
6    var_dump($x, $y);
7    $x = 'changed.x';
8    $y = 'changed.y';
9}
10
11function refVal(&$x, $y) {
12    var_dump($x, $y);
13    $x = 'changed.x';
14    $y = 'changed.y';
15}
16
17
18echo "\n\n-- Val, Ref --\n";
19$a = 'original.a';
20valRef($a, $a);
21var_dump($a);
22
23echo "\n\n-- Ref, Val --\n";
24$b = 'original.b';
25refVal($b, $b);
26var_dump($b);
27?>
28--EXPECT--
29-- Val, Ref --
30string(10) "original.a"
31string(10) "original.a"
32string(9) "changed.y"
33
34
35-- Ref, Val --
36string(10) "original.b"
37string(10) "original.b"
38string(9) "changed.x"
39