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
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
--TEST--
Test mb_substr() function : usage variations - Pass different data types as $encoding arg
--SKIPIF--
<?php
extension_loaded('mbstring') or die('skip');
function_exists('mb_substr') or die("skip mb_substr() is not available in this build");
?>
--FILE--
<?php
/* Prototype : string mb_substr(string $str, int $start [, int $length [, string $encoding]])
* Description: Returns part of a string
* Source code: ext/mbstring/mbstring.c
*/
/*
* Pass different data types as $encoding argument to mb_substr() to test behaviour
* Where possible, 'UTF-8' is entered as string value
*/
echo "*** Testing mb_substr() : usage variations ***\n";
// Initialise function arguments not being substituted
$str = b'string_val';
$start = 1;
$length = 5;
//get an unset variable
$unset_var = 10;
unset ($unset_var);
// get a class
class classA
{
public function __toString() {
return "UTF-8";
}
}
// heredoc string
$heredoc = <<<EOT
UTF-8
EOT;
// get a resource variable
$fp = fopen(__FILE__, "r");
// unexpected values to be passed to $input argument
$inputs = array(
// int data
/*1*/ 0,
1,
12345,
-2345,
// float data
/*5*/ 10.5,
-10.5,
12.3456789000e10,
12.3456789000E-10,
.5,
// null data
/*10*/ NULL,
null,
// boolean data
/*12*/ true,
false,
TRUE,
FALSE,
// empty data
/*16*/ "",
'',
// string data
/*18*/ "UTF-8",
'UTF-8',
$heredoc,
// object data
/*21*/ new classA(),
// undefined data
/*22*/ @$undefined_var,
// unset data
/*23*/ @$unset_var,
// resource variable
/*24*/ $fp
);
// loop through each element of $inputs to check the behavior of mb_substr
$iterator = 1;
foreach($inputs as $input) {
echo "\n-- Iteration $iterator --\n";
$res = mb_substr($str, $start, $length, $input);
if ($res === false) {
var_dump($res);
}
else {
var_dump(bin2hex($res));
}
$iterator++;
};
fclose($fp);
echo "Done";
?>
--EXPECTF--
*** Testing mb_substr() : usage variations ***
-- Iteration 1 --
Warning: mb_substr(): Unknown encoding "0" in %s on line %d
bool(false)
-- Iteration 2 --
Warning: mb_substr(): Unknown encoding "1" in %s on line %d
bool(false)
-- Iteration 3 --
Warning: mb_substr(): Unknown encoding "12345" in %s on line %d
bool(false)
-- Iteration 4 --
Warning: mb_substr(): Unknown encoding "-2345" in %s on line %d
bool(false)
-- Iteration 5 --
Warning: mb_substr(): Unknown encoding "10.5" in %s on line %d
bool(false)
-- Iteration 6 --
Warning: mb_substr(): Unknown encoding "-10.5" in %s on line %d
bool(false)
-- Iteration 7 --
Warning: mb_substr(): Unknown encoding "123456789000" in %s on line %d
bool(false)
-- Iteration 8 --
Warning: mb_substr(): Unknown encoding "1.23456789E-9" in %s on line %d
bool(false)
-- Iteration 9 --
Warning: mb_substr(): Unknown encoding "0.5" in %s on line %d
bool(false)
-- Iteration 10 --
Warning: mb_substr(): Unknown encoding "" in %s on line %d
bool(false)
-- Iteration 11 --
Warning: mb_substr(): Unknown encoding "" in %s on line %d
bool(false)
-- Iteration 12 --
Warning: mb_substr(): Unknown encoding "1" in %s on line %d
bool(false)
-- Iteration 13 --
Warning: mb_substr(): Unknown encoding "" in %s on line %d
bool(false)
-- Iteration 14 --
Warning: mb_substr(): Unknown encoding "1" in %s on line %d
bool(false)
-- Iteration 15 --
Warning: mb_substr(): Unknown encoding "" in %s on line %d
bool(false)
-- Iteration 16 --
Warning: mb_substr(): Unknown encoding "" in %s on line %d
bool(false)
-- Iteration 17 --
Warning: mb_substr(): Unknown encoding "" in %s on line %d
bool(false)
-- Iteration 18 --
string(10) "7472696e67"
-- Iteration 19 --
string(10) "7472696e67"
-- Iteration 20 --
string(10) "7472696e67"
-- Iteration 21 --
string(10) "7472696e67"
-- Iteration 22 --
Warning: mb_substr(): Unknown encoding "" in %s on line %d
bool(false)
-- Iteration 23 --
Warning: mb_substr(): Unknown encoding "" in %s on line %d
bool(false)
-- Iteration 24 --
Warning: mb_substr() expects parameter 4 to be string, resource given in %s on line %d
string(0) ""
Done
|