1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
--TEST--
ZE2 iterators and foreach
--FILE--
<?php
class c_iter implements Iterator {
private $obj;
private $num = 0;
function __construct($obj) {
echo __METHOD__ . "\n";
$this->num = 0;
$this->obj = $obj;
}
function rewind(): void {
}
function valid(): bool {
$more = $this->num < $this->obj->max;
echo __METHOD__ . ' = ' .($more ? 'true' : 'false') . "\n";
return $more;
}
function current(): mixed {
echo __METHOD__ . "\n";
return $this->num;
}
function next(): void {
echo __METHOD__ . "\n";
$this->num++;
}
function key(): mixed {
echo __METHOD__ . "\n";
switch($this->num) {
case 0: return "1st";
case 1: return "2nd";
case 2: return "3rd";
default: return "???";
}
}
}
class c implements IteratorAggregate {
public $max = 3;
function getIterator(): Traversable {
echo __METHOD__ . "\n";
return new c_iter($this);
}
}
echo "===Array===\n";
$a = array(0,1,2);
foreach($a as $v) {
echo "array:$v\n";
}
echo "===Manual===\n";
$t = new c();
for ($iter = $t->getIterator(); $iter->valid(); $iter->next()) {
echo $iter->current() . "\n";
}
echo "===foreach/std===\n";
foreach($t as $v) {
echo "object:$v\n";
}
echo "===foreach/rec===\n";
foreach($t as $v) {
foreach($t as $w) {
echo "double:$v:$w\n";
}
}
echo "===foreach/key===\n";
foreach($t as $i => $v) {
echo "object:$i=>$v\n";
}
print "Done\n";
exit(0);
?>
--EXPECT--
===Array===
array:0
array:1
array:2
===Manual===
c::getIterator
c_iter::__construct
c_iter::valid = true
c_iter::current
0
c_iter::next
c_iter::valid = true
c_iter::current
1
c_iter::next
c_iter::valid = true
c_iter::current
2
c_iter::next
c_iter::valid = false
===foreach/std===
c::getIterator
c_iter::__construct
c_iter::valid = true
c_iter::current
object:0
c_iter::next
c_iter::valid = true
c_iter::current
object:1
c_iter::next
c_iter::valid = true
c_iter::current
object:2
c_iter::next
c_iter::valid = false
===foreach/rec===
c::getIterator
c_iter::__construct
c_iter::valid = true
c_iter::current
c::getIterator
c_iter::__construct
c_iter::valid = true
c_iter::current
double:0:0
c_iter::next
c_iter::valid = true
c_iter::current
double:0:1
c_iter::next
c_iter::valid = true
c_iter::current
double:0:2
c_iter::next
c_iter::valid = false
c_iter::next
c_iter::valid = true
c_iter::current
c::getIterator
c_iter::__construct
c_iter::valid = true
c_iter::current
double:1:0
c_iter::next
c_iter::valid = true
c_iter::current
double:1:1
c_iter::next
c_iter::valid = true
c_iter::current
double:1:2
c_iter::next
c_iter::valid = false
c_iter::next
c_iter::valid = true
c_iter::current
c::getIterator
c_iter::__construct
c_iter::valid = true
c_iter::current
double:2:0
c_iter::next
c_iter::valid = true
c_iter::current
double:2:1
c_iter::next
c_iter::valid = true
c_iter::current
double:2:2
c_iter::next
c_iter::valid = false
c_iter::next
c_iter::valid = false
===foreach/key===
c::getIterator
c_iter::__construct
c_iter::valid = true
c_iter::current
c_iter::key
object:1st=>0
c_iter::next
c_iter::valid = true
c_iter::current
c_iter::key
object:2nd=>1
c_iter::next
c_iter::valid = true
c_iter::current
c_iter::key
object:3rd=>2
c_iter::next
c_iter::valid = false
Done
|
