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
|
--TEST--
Test strval() function : usage variations - Pass different data types as strval
--FILE--
<?php
echo "*** Testing strval() : usage variations ***\n";
//get an unset variable
$unset_var = 10;
unset ($unset_var);
//getting the resource
$file_handle = fopen(__FILE__, "r");
class MyClass
{
function __toString() {
return "MyClass";
}
}
//array of values to iterate over
$values = array(
//Decimal values
/*1*/ 0,
1,
12345,
-12345,
//Octal values
/*5*/ 02,
010,
030071,
-030071,
//Hexadecimal values
/*9*/ 0x0,
0x1,
0xABCD,
-0xABCD,
// float data
/*13*/ 100.5,
-100.5,
100.1234567e10,
100.7654321E-10,
.5,
// array data
/*18*/ array(),
array('color' => 'red', 'item' => 'pen'),
// null data
/*20*/ NULL,
null,
// boolean data
/*22*/ true,
false,
TRUE,
FALSE,
// empty data
/*26*/ "",
'',
// object data
/*28*/ new MyClass(),
// resource
/*29*/ $file_handle,
// undefined data
/*30*/ @$undefined_var,
// unset data
/*31*/ @$unset_var,
);
// loop through each element of the array for strval
$iterator = 1;
foreach($values as $value) {
echo "\n-- Iteration $iterator --\n";
var_dump( strval($value) );
$iterator++;
};
?>
--EXPECTF--
*** Testing strval() : usage variations ***
-- Iteration 1 --
string(1) "0"
-- Iteration 2 --
string(1) "1"
-- Iteration 3 --
string(5) "12345"
-- Iteration 4 --
string(6) "-12345"
-- Iteration 5 --
string(1) "2"
-- Iteration 6 --
string(1) "8"
-- Iteration 7 --
string(5) "12345"
-- Iteration 8 --
string(6) "-12345"
-- Iteration 9 --
string(1) "0"
-- Iteration 10 --
string(1) "1"
-- Iteration 11 --
string(5) "43981"
-- Iteration 12 --
string(6) "-43981"
-- Iteration 13 --
string(5) "100.5"
-- Iteration 14 --
string(6) "-100.5"
-- Iteration 15 --
string(13) "1001234567000"
-- Iteration 16 --
string(14) "1.007654321E-8"
-- Iteration 17 --
string(3) "0.5"
-- Iteration 18 --
Warning: Array to string conversion in %s on line %d
string(5) "Array"
-- Iteration 19 --
Warning: Array to string conversion in %s on line %d
string(5) "Array"
-- Iteration 20 --
string(0) ""
-- Iteration 21 --
string(0) ""
-- Iteration 22 --
string(1) "1"
-- Iteration 23 --
string(0) ""
-- Iteration 24 --
string(1) "1"
-- Iteration 25 --
string(0) ""
-- Iteration 26 --
string(0) ""
-- Iteration 27 --
string(0) ""
-- Iteration 28 --
string(7) "MyClass"
-- Iteration 29 --
string(%d) "Resource id #%d"
-- Iteration 30 --
string(0) ""
-- Iteration 31 --
string(0) ""
|