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
|
--TEST--
SPL: RecursiveIteratorIterator and catch getChildren
--FILE--
<?php
class MyRecursiveArrayIterator extends RecursiveArrayIterator
{
function getChildren()
{
echo __METHOD__ . "\n";
return $this->current();
}
function valid()
{
if (!parent::valid())
{
echo __METHOD__ . " = false\n";
return false;
}
else
{
return true;
}
}
}
class RecursiveArrayIteratorIterator extends RecursiveIteratorIterator
{
private $max_depth;
private $over = 0;
private $skip = false;
function __construct($it, $max_depth)
{
$this->max_depth = $max_depth;
parent::__construct($it, RecursiveIteratorIterator::LEAVES_ONLY, RecursiveIteratorIterator::CATCH_GET_CHILD);
}
function rewind()
{
echo __METHOD__ . "\n";
$this->skip = false;
parent::rewind();
}
function valid()
{
echo __METHOD__ . "\n";
if ($this->skip)
{
$this->skip = false;
$this->next();
}
return parent::valid();
}
function current()
{
echo __METHOD__ . "\n";
return parent::current();
}
function key()
{
echo __METHOD__ . "\n";
return parent::key();
}
function next()
{
echo __METHOD__ . "\n";
parent::next();
}
function callHasChildren()
{
$this->skip = false;
$has = parent::callHasChildren();
$res = $this->getDepth() < $this->max_depth && $has;
echo __METHOD__ . "(".$this->getDepth().") = ".($res?"yes":"no")."/".($has?"yes":"no")."\n";
if ($has && !$res)
{
$this->over++;
if ($this->over == 2) {
$this->skip = true;
}
}
return $res;
}
function callGetChildren()
{
if ($this->over == 2)
{
echo __METHOD__ . "(throw)\n";
throw new Exception("Thrown in callGetChildren()");
}
echo __METHOD__ . "(ok:{$this->over})\n";
return new MyRecursiveArrayIterator($this->current());
}
function beginChildren()
{
echo __METHOD__ . "(".$this->getDepth().")\n";
}
function endChildren()
{
echo __METHOD__ . "(".$this->getDepth().")\n";
}
}
try
{
foreach(new RecursiveArrayIteratorIterator(new MyRecursiveArrayIterator(array("a", array("ba", array("bba", "bbb"), array(array("bcaa"), array("bcba"))), array("ca"), "d")), 2) as $k=>$v)
{
if (is_array($v)) $v = join('',$v);
echo "$k=>$v\n";
}
}
catch(UnexpectedValueException $e)
{
echo $e->getMessage() . "\n";
}
?>
===DONE===
<?php exit(0); ?>
--EXPECT--
RecursiveArrayIteratorIterator::rewind
RecursiveArrayIteratorIterator::callHasChildren(0) = no/no
RecursiveArrayIteratorIterator::valid
RecursiveArrayIteratorIterator::current
RecursiveArrayIteratorIterator::key
0=>a
RecursiveArrayIteratorIterator::next
RecursiveArrayIteratorIterator::callHasChildren(0) = yes/yes
RecursiveArrayIteratorIterator::callGetChildren(ok:0)
RecursiveArrayIteratorIterator::current
RecursiveArrayIteratorIterator::beginChildren(1)
RecursiveArrayIteratorIterator::callHasChildren(1) = no/no
RecursiveArrayIteratorIterator::valid
RecursiveArrayIteratorIterator::current
RecursiveArrayIteratorIterator::key
0=>ba
RecursiveArrayIteratorIterator::next
RecursiveArrayIteratorIterator::callHasChildren(1) = yes/yes
RecursiveArrayIteratorIterator::callGetChildren(ok:0)
RecursiveArrayIteratorIterator::current
RecursiveArrayIteratorIterator::beginChildren(2)
RecursiveArrayIteratorIterator::callHasChildren(2) = no/no
RecursiveArrayIteratorIterator::valid
RecursiveArrayIteratorIterator::current
RecursiveArrayIteratorIterator::key
0=>bba
RecursiveArrayIteratorIterator::next
RecursiveArrayIteratorIterator::callHasChildren(2) = no/no
RecursiveArrayIteratorIterator::valid
RecursiveArrayIteratorIterator::current
RecursiveArrayIteratorIterator::key
1=>bbb
RecursiveArrayIteratorIterator::next
MyRecursiveArrayIterator::valid = false
RecursiveArrayIteratorIterator::endChildren(2)
RecursiveArrayIteratorIterator::callHasChildren(1) = yes/yes
RecursiveArrayIteratorIterator::callGetChildren(ok:0)
RecursiveArrayIteratorIterator::current
RecursiveArrayIteratorIterator::beginChildren(2)
RecursiveArrayIteratorIterator::callHasChildren(2) = no/yes
RecursiveArrayIteratorIterator::valid
RecursiveArrayIteratorIterator::current
RecursiveArrayIteratorIterator::key
0=>bcaa
RecursiveArrayIteratorIterator::next
RecursiveArrayIteratorIterator::callHasChildren(2) = no/yes
RecursiveArrayIteratorIterator::valid
RecursiveArrayIteratorIterator::next
MyRecursiveArrayIterator::valid = false
RecursiveArrayIteratorIterator::endChildren(2)
MyRecursiveArrayIterator::valid = false
RecursiveArrayIteratorIterator::endChildren(1)
RecursiveArrayIteratorIterator::callHasChildren(0) = yes/yes
RecursiveArrayIteratorIterator::callGetChildren(throw)
RecursiveArrayIteratorIterator::callHasChildren(0) = no/no
RecursiveArrayIteratorIterator::current
RecursiveArrayIteratorIterator::key
3=>d
RecursiveArrayIteratorIterator::next
MyRecursiveArrayIterator::valid = false
RecursiveArrayIteratorIterator::valid
MyRecursiveArrayIterator::valid = false
===DONE===
|
