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
|
--TEST--
Test intval() function : usage variation
--FILE--
<?php
/* Prototype : int intval(mixed var [, int base])
* Description: Get the integer value of a variable using the optional base for the conversion
* Source code: ext/standard/type.c
* Alias to functions:
*/
echo "*** Testing intval() : usage variation ***\n";
// Define error handler
function test_error_handler($err_no, $err_msg, $filename, $linenum) {
if (error_reporting() & $err_no) {
// report non-silenced errors
echo "Error: $err_no - $err_msg, $filename($linenum)\n";
}
}
set_error_handler('test_error_handler');
// Initialise function arguments not being substituted (if any)
$base = 10;
//get an unset variable
$unset_var = 10;
unset ($unset_var);
// define some classes
class classWithToString
{
public function __toString() {
return "Class A object";
}
}
class classWithoutToString
{
}
// heredoc string
$heredoc = <<<EOT
hello world
EOT;
// add arrays
$index_array = array (1, 2, 3);
$assoc_array = array ('one' => 1, 'two' => 2);
//array of values to iterate over
$inputs = array(
// int data
'int 0' => 0,
'int 1' => 1,
'int 12345' => 12345,
'int -12345' => -2345,
// float data
'float 10.5' => 10.5,
'float -10.5' => -10.5,
'float 12.3456789e5' => 12.3456789e5,
'float -12.3456789e5' => -12.3456789e5,
'float .5' => .5,
// array data
'empty array' => array(),
'int indexed array' => $index_array,
'associative array' => $assoc_array,
'nested arrays' => array('foo', $index_array, $assoc_array),
// null data
'uppercase NULL' => NULL,
'lowercase null' => null,
// boolean data
'lowercase true' => true,
'lowercase false' =>false,
'uppercase TRUE' =>TRUE,
'uppercase FALSE' =>FALSE,
// empty data
'empty string DQ' => "",
'empty string SQ' => '',
// string data
'string DQ' => "string",
'string SQ' => 'string',
'mixed case string' => "sTrInG",
'heredoc' => $heredoc,
// object data
'instance of classWithToString' => new classWithToString(),
'instance of classWithoutToString' => new classWithoutToString(),
// undefined data
'undefined var' => @$undefined_var,
// unset data
'unset var' => @$unset_var,
);
// loop through each element of the array for var
foreach($inputs as $key =>$value) {
echo "\n--$key--\n";
var_dump( intval($value, $base) );
};
?>
===DONE===
--EXPECTF--
*** Testing intval() : usage variation ***
--int 0--
int(0)
--int 1--
int(1)
--int 12345--
int(12345)
--int -12345--
int(-2345)
--float 10.5--
int(10)
--float -10.5--
int(-10)
--float 12.3456789e5--
int(1234567)
--float -12.3456789e5--
int(-1234567)
--float .5--
int(0)
--empty array--
int(0)
--int indexed array--
int(1)
--associative array--
int(1)
--nested arrays--
int(1)
--uppercase NULL--
int(0)
--lowercase null--
int(0)
--lowercase true--
int(1)
--lowercase false--
int(0)
--uppercase TRUE--
int(1)
--uppercase FALSE--
int(0)
--empty string DQ--
int(0)
--empty string SQ--
int(0)
--string DQ--
int(0)
--string SQ--
int(0)
--mixed case string--
int(0)
--heredoc--
int(0)
--instance of classWithToString--
Error: 8 - Object of class classWithToString could not be converted to int, %s(%d)
int(1)
--instance of classWithoutToString--
Error: 8 - Object of class classWithoutToString could not be converted to int, %s(%d)
int(1)
--undefined var--
int(0)
--unset var--
int(0)
===DONE===
|
