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
|
--TEST--
SPL: SeekableIterator and string keys
--FILE--
<?php
class NumericArrayIterator implements Iterator
{
protected $a;
protected $i;
public function __construct($a)
{
echo __METHOD__ . "\n";
$this->a = $a;
}
public function rewind()
{
echo __METHOD__ . "\n";
$this->i = 0;
}
public function valid()
{
$ret = $this->i < count($this->a);
echo __METHOD__ . '(' . ($ret ? 'true' : 'false') . ")\n";
return $ret;
}
public function key()
{
echo __METHOD__ . "\n";
return $this->i;
}
public function current()
{
echo __METHOD__ . "\n";
return $this->a[$this->i];
}
public function next()
{
echo __METHOD__ . "\n";
$this->i++;
}
}
class SeekableNumericArrayIterator extends NumericArrayIterator implements SeekableIterator
{
public function seek($index)
{
if ($index < count($this->a)) {
$this->i = $index;
}
echo __METHOD__ . '(' . $index . ")\n";
}
}
$a = array(1, 2, 3, 4, 5);
foreach (new LimitIterator(new NumericArrayIterator($a), 1, 3) as $v)
{
print "$v\n";
}
echo "===SEEKABLE===\n";
$a = array(1, 2, 3, 4, 5);
foreach(new LimitIterator(new SeekableNumericArrayIterator($a), 1, 3) as $v)
{
print "$v\n";
}
echo "===SEEKING===\n";
$a = array(1, 2, 3, 4, 5);
$l = new LimitIterator(new SeekableNumericArrayIterator($a));
for($i = 1; $i < 4; $i++)
{
$l->seek($i);
print $l->current() . "\n";
}
?>
===DONE===
<?php exit(0); ?>
--EXPECT--
NumericArrayIterator::__construct
NumericArrayIterator::rewind
NumericArrayIterator::valid(true)
NumericArrayIterator::next
NumericArrayIterator::valid(true)
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
2
NumericArrayIterator::next
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
3
NumericArrayIterator::next
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
4
NumericArrayIterator::next
===SEEKABLE===
NumericArrayIterator::__construct
NumericArrayIterator::rewind
SeekableNumericArrayIterator::seek(1)
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
2
NumericArrayIterator::next
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
3
NumericArrayIterator::next
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
4
NumericArrayIterator::next
===SEEKING===
NumericArrayIterator::__construct
SeekableNumericArrayIterator::seek(1)
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
2
SeekableNumericArrayIterator::seek(2)
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
3
SeekableNumericArrayIterator::seek(3)
NumericArrayIterator::valid(true)
NumericArrayIterator::current
NumericArrayIterator::key
4
===DONE===
|
