xref: /PHP-8.0/tests/lang/bug22510.phpt (revision f8d79582)
1--TEST--
2Bug #22510 (segfault among complex references)
3--FILE--
4<?php
5class foo
6{
7    public $list = array();
8
9    function finalize() {
10        print __CLASS__."::".__FUNCTION__."\n";
11        $cl = &$this->list;
12    }
13
14    function &method1() {
15        print __CLASS__."::".__FUNCTION__."\n";
16        return @$this->foo;
17    }
18
19    function &method2() {
20        print __CLASS__."::".__FUNCTION__."\n";
21        return $this->foo;
22    }
23
24    function method3() {
25        print __CLASS__."::".__FUNCTION__."\n";
26        return @$this->foo;
27    }
28}
29
30class bar
31{
32    function run1() {
33        print __CLASS__."::".__FUNCTION__."\n";
34        $this->instance = new foo();
35        $this->instance->method1($this);
36        $this->instance->method1($this);
37    }
38
39    function run2() {
40        print __CLASS__."::".__FUNCTION__."\n";
41        $this->instance = new foo();
42        $this->instance->method2($this);
43        $this->instance->method2($this);
44    }
45
46    function run3() {
47        print __CLASS__."::".__FUNCTION__."\n";
48        $this->instance = new foo();
49        $this->instance->method3($this);
50        $this->instance->method3($this);
51    }
52}
53
54function ouch(&$bar) {
55    print __FUNCTION__."\n";
56    @$a = $a;
57    $bar->run1();
58}
59
60function ok1(&$bar) {
61    print __FUNCTION__."\n";
62    $bar->run1();
63}
64
65function ok2(&$bar) {
66    print __FUNCTION__."\n";
67    @$a = $a;
68    $bar->run2();
69}
70
71function ok3(&$bar) {
72    print __FUNCTION__."\n";
73    @$a = $a;
74    $bar->run3();
75}
76
77$foo = new bar();
78$bar =& $foo;
79ok1($bar);
80$bar->instance->finalize();
81print "done!\n";
82ok2($bar);
83$bar->instance->finalize();
84print "done!\n";
85ok3($bar);
86$bar->instance->finalize();
87print "done!\n";
88ouch($bar);
89$bar->instance->finalize();
90print "I'm alive!\n";
91?>
92--EXPECTF--
93ok1
94bar::run1
95foo::method1
96
97Notice: Only variable references should be returned by reference in %s on line %d
98foo::method1
99
100Notice: Only variable references should be returned by reference in %s on line %d
101foo::finalize
102done!
103ok2
104bar::run2
105foo::method2
106foo::method2
107foo::finalize
108done!
109ok3
110bar::run3
111foo::method3
112foo::method3
113foo::finalize
114done!
115ouch
116bar::run1
117foo::method1
118
119Notice: Only variable references should be returned by reference in %s on line %d
120foo::method1
121
122Notice: Only variable references should be returned by reference in %s on line %d
123foo::finalize
124I'm alive!
125