1--TEST--
2Check for reference serialization
3--SKIPIF--
4<?php
5if (version_compare(PHP_VERSION, "8.0.0dev", ">=")) {
6    die("skip PHP >= 8.0\n");
7}
8?>
9--FILE--
10<?php
11if(!extension_loaded('msgpack')) {
12    dl('msgpack.' . PHP_SHLIB_SUFFIX);
13}
14
15function test($type, $variable, $test) {
16    $serialized = msgpack_serialize($variable);
17    $unserialized = msgpack_unserialize($serialized);
18
19    echo $type, PHP_EOL;
20    echo bin2hex($serialized), PHP_EOL;
21    var_dump($unserialized);
22    echo $test || $unserialized == $variable ? 'OK' : 'ERROR', PHP_EOL;
23}
24
25$a = array('foo');
26
27test('array($a, $a)', array($a, $a), false);
28test('array(&$a, &$a)', array(&$a, &$a), false);
29
30$a = array(null);
31$b = array(&$a);
32$a[0] = &$b;
33
34test('cyclic', $a, true);
35
36var_dump($a);
37var_dump(msgpack_unserialize(msgpack_serialize($a)));
38
39--EXPECT--
40array($a, $a)
419291a3666f6f91a3666f6f
42array(2) {
43  [0]=>
44  array(1) {
45    [0]=>
46    string(3) "foo"
47  }
48  [1]=>
49  array(1) {
50    [0]=>
51    string(3) "foo"
52  }
53}
54OK
55array(&$a, &$a)
569282c00100a3666f6f82c0020002
57array(2) {
58  [0]=>
59  &array(1) {
60    [0]=>
61    string(3) "foo"
62  }
63  [1]=>
64  &array(1) {
65    [0]=>
66    string(3) "foo"
67  }
68}
69OK
70cyclic
719182c0010082c0010082c0020002
72array(1) {
73  [0]=>
74  &array(1) {
75    [0]=>
76    array(1) {
77      [0]=>
78      *RECURSION*
79    }
80  }
81}
82OK
83array(1) {
84  [0]=>
85  &array(1) {
86    [0]=>
87    &array(1) {
88      [0]=>
89      *RECURSION*
90    }
91  }
92}
93array(1) {
94  [0]=>
95  &array(1) {
96    [0]=>
97    array(1) {
98      [0]=>
99      *RECURSION*
100    }
101  }
102}
103