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
|
--TEST--
Test arsort() function : usage variations - sort array with diff. sub arrays, 'sort_flags' as default/SORT_REGULAR
--FILE--
<?php
/* Prototype : bool arsort ( array &$array [, int $sort_flags] )
* Description: Sort an array and maintain index association.
Elements will be arranged from highest to lowest when this function has completed.
* Source code: ext/standard/array.c
*/
/*
* testing arsort() by providing arrays contains sub arrays for $array argument with flowing flag values
* flag value as default
* SORT_REGULAR - compare items normally
* Note: arrays are sorted based on total count of elements inside it, when all the elements are arrays
*/
echo "*** Testing arsort() : usage variations ***\n";
// array of arrays
$various_arrays = array (
// null array
"array[0]" => array(),
// array contains null sub array
"array[1]" => array( "sub_array[1][0]" => array() ),
// array of arrays along with some values
"array[2]" => array("data[2,0]" => 44, "data[2,1]" => 11, "sub_array[2][0] " => array(64,61) ),
// array contains sub arrays
"array[3]" => array ( "sub_array[3][0]" => array(33,-5,6), "sub_array[3][1]" => array(11),
"sub_array[3][2]" => array(22,-55), "sub_array[3][3]" => array() )
);
$count = 1;
echo "\n-- Testing arsort() by supplying various arrays containing sub arrays --\n";
// loop through to test arsort() with different arrays
foreach ($various_arrays as $array) {
echo "\n-- Iteration $count --\n";
// testing arsort() function by supplying different arrays, flag value is default
echo "- With default sort_flag -\n";
$temp_array = $array;
var_dump(arsort($temp_array) );
var_dump($temp_array);
// testing arsort() function by supplying different arrays, flag value = SORT_REGULAR
echo "- Sort_flag = SORT_REGULAR -\n";
$temp_array = $array;
var_dump(arsort($temp_array, SORT_REGULAR) );
var_dump($temp_array);
$count++;
}
echo "Done\n";
?>
--EXPECTF--
*** Testing arsort() : usage variations ***
-- Testing arsort() by supplying various arrays containing sub arrays --
-- Iteration 1 --
- With default sort_flag -
bool(true)
array(0) {
}
- Sort_flag = SORT_REGULAR -
bool(true)
array(0) {
}
-- Iteration 2 --
- With default sort_flag -
bool(true)
array(1) {
["sub_array[1][0]"]=>
array(0) {
}
}
- Sort_flag = SORT_REGULAR -
bool(true)
array(1) {
["sub_array[1][0]"]=>
array(0) {
}
}
-- Iteration 3 --
- With default sort_flag -
bool(true)
array(3) {
["sub_array[2][0] "]=>
array(2) {
[0]=>
int(64)
[1]=>
int(61)
}
["data[2,0]"]=>
int(44)
["data[2,1]"]=>
int(11)
}
- Sort_flag = SORT_REGULAR -
bool(true)
array(3) {
["sub_array[2][0] "]=>
array(2) {
[0]=>
int(64)
[1]=>
int(61)
}
["data[2,0]"]=>
int(44)
["data[2,1]"]=>
int(11)
}
-- Iteration 4 --
- With default sort_flag -
bool(true)
array(4) {
["sub_array[3][0]"]=>
array(3) {
[0]=>
int(33)
[1]=>
int(-5)
[2]=>
int(6)
}
["sub_array[3][2]"]=>
array(2) {
[0]=>
int(22)
[1]=>
int(-55)
}
["sub_array[3][1]"]=>
array(1) {
[0]=>
int(11)
}
["sub_array[3][3]"]=>
array(0) {
}
}
- Sort_flag = SORT_REGULAR -
bool(true)
array(4) {
["sub_array[3][0]"]=>
array(3) {
[0]=>
int(33)
[1]=>
int(-5)
[2]=>
int(6)
}
["sub_array[3][2]"]=>
array(2) {
[0]=>
int(22)
[1]=>
int(-55)
}
["sub_array[3][1]"]=>
array(1) {
[0]=>
int(11)
}
["sub_array[3][3]"]=>
array(0) {
}
}
Done
|
