xref: /PHP-8.2/tests/classes/iterators_002.phpt (revision 75a678a7)
1--TEST--
2ZE2 iterators and break
3--FILE--
4<?php
5class c_iter implements Iterator {
6
7    private $obj;
8    private $num = 0;
9
10    function __construct($obj) {
11        echo __METHOD__ . "\n";
12        $this->obj = $obj;
13    }
14    function rewind(): void {
15        echo __METHOD__ . "\n";
16        $this->num = 0;
17    }
18    function valid(): bool {
19        $more = $this->num < $this->obj->max;
20        echo __METHOD__ . ' = ' .($more ? 'true' : 'false') . "\n";
21        return $more;
22    }
23    function current(): mixed {
24        echo __METHOD__ . "\n";
25        return $this->num;
26    }
27    function next(): void {
28        echo __METHOD__ . "\n";
29        $this->num++;
30    }
31    function key(): mixed {
32        echo __METHOD__ . "\n";
33        switch($this->num) {
34            case 0: return "1st";
35            case 1: return "2nd";
36            case 2: return "3rd";
37            default: return "???";
38        }
39    }
40    function __destruct() {
41        echo __METHOD__ . "\n";
42    }
43}
44
45class c implements IteratorAggregate {
46
47    public $max = 3;
48
49    function getIterator(): Traversable {
50        echo __METHOD__ . "\n";
51        return new c_iter($this);
52    }
53    function __destruct() {
54        echo __METHOD__ . "\n";
55    }
56}
57
58$t = new c();
59
60foreach($t as $k => $v) {
61    foreach($t as $w) {
62        echo "double:$v:$w\n";
63        break;
64    }
65}
66
67unset($t);
68
69print "Done\n";
70?>
71--EXPECT--
72c::getIterator
73c_iter::__construct
74c_iter::rewind
75c_iter::valid = true
76c_iter::current
77c_iter::key
78c::getIterator
79c_iter::__construct
80c_iter::rewind
81c_iter::valid = true
82c_iter::current
83double:0:0
84c_iter::__destruct
85c_iter::next
86c_iter::valid = true
87c_iter::current
88c_iter::key
89c::getIterator
90c_iter::__construct
91c_iter::rewind
92c_iter::valid = true
93c_iter::current
94double:1:0
95c_iter::__destruct
96c_iter::next
97c_iter::valid = true
98c_iter::current
99c_iter::key
100c::getIterator
101c_iter::__construct
102c_iter::rewind
103c_iter::valid = true
104c_iter::current
105double:2:0
106c_iter::__destruct
107c_iter::next
108c_iter::valid = false
109c_iter::__destruct
110c::__destruct
111Done
112