1--TEST--
2Passing assignments by reference
3--FILE--
4<?php
5
6function f(&$a) {
7  var_dump($a);
8  $a = "a.changed";
9}
10
11echo "\n\n---> Pass constant assignment by reference:\n";
12f($a="a.original");
13var_dump($a);
14
15echo "\n\n---> Pass variable assignment by reference:\n";
16unset($a);
17$a = "a.original";
18f($b = $a);
19var_dump($a);
20
21echo "\n\n---> Pass reference assignment by reference:\n";
22unset($a, $b);
23$a = "a.original";
24f($b =& $a);
25var_dump($a);
26
27echo "\n\n---> Pass concat assignment by reference:\n";
28unset($a, $b);
29$b = "b.original";
30$a = "a.original";
31f($b .= $a);
32var_dump($a);
33
34?>
35--EXPECTF--
36
37
38---> Pass constant assignment by reference:
39
40Strict Standards: Only variables should be passed by reference in %s on line 9
41string(10) "a.original"
42string(10) "a.original"
43
44
45---> Pass variable assignment by reference:
46
47Strict Standards: Only variables should be passed by reference in %s on line 15
48string(10) "a.original"
49string(10) "a.original"
50
51
52---> Pass reference assignment by reference:
53string(10) "a.original"
54string(9) "a.changed"
55
56
57---> Pass concat assignment by reference:
58
59Strict Standards: Only variables should be passed by reference in %s on line 28
60string(20) "b.originala.original"
61string(10) "a.original"
62