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
|
--TEST--
Test array_shift() function : usage variations - Pass array with different data types as keys
--FILE--
<?php
/* Prototype : mixed array_shift(array &$stack)
* Description: Pops an element off the beginning of the array
* Source code: ext/standard/array.c
*/
/*
* Pass arrays with different data types as keys to test how array_shift() re-assigns keys
*/
echo "*** Testing array_shift() : usage variations ***\n";
//get an unset variable
$unset_var = 10;
unset ($unset_var);
// heredoc string
$heredoc = <<<EOT
hello world
EOT;
// unexpected values to be passed to $stack argument
$inputs = array(
// int data
/*1*/ 'int' => array(
0 => 'zero',
1 => 'one',
12345 => 'positive',
-2345 => 'negative',
),
// float data
/*2*/ 'float' => array(
10.5 => 'positive',
-10.5 => 'negative',
.5 => 'half',
),
/*3*/ 'extreme floats' => array(
12.3456789000e10 => 'large',
12.3456789000E-10 => 'small',
),
// null data
/*4*/ 'null uppercase' => array(
NULL => 'null 1',
),
/*5*/ 'null lowercase' => array(
null => 'null 2',
),
// boolean data
/*6*/ 'bool lowercase' => array(
true => 'lowert',
false => 'lowerf',
),
/*7*/ 'bool uppercase' => array(
TRUE => 'uppert',
FALSE => 'upperf',
),
// empty data
/*8*/ 'empty double quotes' => array(
"" => 'emptyd',
),
/*9*/ 'empty single quotes' => array(
'' => 'emptys',
),
// string data
/*10*/ 'string' => array(
"stringd" => 'stringd',
'strings' => 'strings',
$heredoc => 'stringh',
),
// undefined data
/*11*/ 'undefined' => array(
@$undefined_var => 'undefined',
),
// unset data
/*12*/ 'unset' => array(
@$unset_var => 'unset',
),
);
// loop through each element of $inputs to check the behavior of array_shift()
$iterator = 1;
foreach($inputs as $key => $input) {
echo "\n-- Iteration $iterator : $key data --\n";
var_dump( array_shift($input) );
var_dump($input);
$iterator++;
};
echo "Done";
?>
--EXPECTF--
*** Testing array_shift() : usage variations ***
-- Iteration 1 : int data --
string(4) "zero"
array(3) {
[0]=>
string(3) "one"
[1]=>
string(8) "positive"
[2]=>
string(8) "negative"
}
-- Iteration 2 : float data --
string(8) "positive"
array(2) {
[0]=>
string(8) "negative"
[1]=>
string(4) "half"
}
-- Iteration 3 : extreme floats data --
string(5) "large"
array(1) {
[0]=>
string(5) "small"
}
-- Iteration 4 : null uppercase data --
string(6) "null 1"
array(0) {
}
-- Iteration 5 : null lowercase data --
string(6) "null 2"
array(0) {
}
-- Iteration 6 : bool lowercase data --
string(6) "lowert"
array(1) {
[0]=>
string(6) "lowerf"
}
-- Iteration 7 : bool uppercase data --
string(6) "uppert"
array(1) {
[0]=>
string(6) "upperf"
}
-- Iteration 8 : empty double quotes data --
string(6) "emptyd"
array(0) {
}
-- Iteration 9 : empty single quotes data --
string(6) "emptys"
array(0) {
}
-- Iteration 10 : string data --
string(7) "stringd"
array(2) {
["strings"]=>
string(7) "strings"
["hello world"]=>
string(7) "stringh"
}
-- Iteration 11 : undefined data --
string(9) "undefined"
array(0) {
}
-- Iteration 12 : unset data --
string(5) "unset"
array(0) {
}
Done
|
