1--TEST--
2Test sort() function : usage variations - sort array with diff. sub arrays, 'sort_flags' as defualt/SORT_REGULAR
3--FILE--
4<?php
5/* Prototype  : bool sort ( array &$array [, int $sort_flags] )
6 * Description: This function sorts an array.
7                Elements will be arranged from lowest to highest when this function has completed.
8 * Source code: ext/standard/array.c
9*/
10
11/*
12 * testing sort() by providing arrays contains sub arrays for $array argument with flowing flag values
13 * flag value as defualt
14 * SORT_REGULAR - compare items normally
15*/
16
17echo "*** Testing sort() : usage variations ***\n";
18
19// array of arrays
20$various_arrays = array (
21  // null array
22  array(),
23
24  // array contains null sub array
25  array( array() ),
26
27  // array of arrays along with some values
28  array(44, 11, array(64, 61) ),
29
30  // array containing sub arrays
31  array(array(33, -5, 6), array(11), array(22, -55), array() )
32);
33
34
35$count = 1;
36echo "\n-- Testing sort() by supplying various arrays containing sub arrays --\n";
37
38// loop through to test sort() with different arrays
39foreach ($various_arrays as $array) {
40
41  echo "\n-- Iteration $count --\n";
42  // testing sort() function by supplying different arrays, flag value is defualt
43  echo "- With Defualt sort flag -\n";
44  $temp_array = $array;
45  var_dump(sort($temp_array) );
46  var_dump($temp_array);
47
48  // testing sort() function by supplying different arrays, flag value = SORT_REGULAR
49  echo "- Sort flag = SORT_REGULAR -\n";
50  $temp_array = $array;
51  var_dump(sort($temp_array, SORT_REGULAR) );
52  var_dump($temp_array);
53  $count++;
54}
55
56echo "Done\n";
57?>
58--EXPECT--
59*** Testing sort() : usage variations ***
60
61-- Testing sort() by supplying various arrays containing sub arrays --
62
63-- Iteration 1 --
64- With Defualt sort flag -
65bool(true)
66array(0) {
67}
68- Sort flag = SORT_REGULAR -
69bool(true)
70array(0) {
71}
72
73-- Iteration 2 --
74- With Defualt sort flag -
75bool(true)
76array(1) {
77  [0]=>
78  array(0) {
79  }
80}
81- Sort flag = SORT_REGULAR -
82bool(true)
83array(1) {
84  [0]=>
85  array(0) {
86  }
87}
88
89-- Iteration 3 --
90- With Defualt sort flag -
91bool(true)
92array(3) {
93  [0]=>
94  int(11)
95  [1]=>
96  int(44)
97  [2]=>
98  array(2) {
99    [0]=>
100    int(64)
101    [1]=>
102    int(61)
103  }
104}
105- Sort flag = SORT_REGULAR -
106bool(true)
107array(3) {
108  [0]=>
109  int(11)
110  [1]=>
111  int(44)
112  [2]=>
113  array(2) {
114    [0]=>
115    int(64)
116    [1]=>
117    int(61)
118  }
119}
120
121-- Iteration 4 --
122- With Defualt sort flag -
123bool(true)
124array(4) {
125  [0]=>
126  array(0) {
127  }
128  [1]=>
129  array(1) {
130    [0]=>
131    int(11)
132  }
133  [2]=>
134  array(2) {
135    [0]=>
136    int(22)
137    [1]=>
138    int(-55)
139  }
140  [3]=>
141  array(3) {
142    [0]=>
143    int(33)
144    [1]=>
145    int(-5)
146    [2]=>
147    int(6)
148  }
149}
150- Sort flag = SORT_REGULAR -
151bool(true)
152array(4) {
153  [0]=>
154  array(0) {
155  }
156  [1]=>
157  array(1) {
158    [0]=>
159    int(11)
160  }
161  [2]=>
162  array(2) {
163    [0]=>
164    int(22)
165    [1]=>
166    int(-55)
167  }
168  [3]=>
169  array(3) {
170    [0]=>
171    int(33)
172    [1]=>
173    int(-5)
174    [2]=>
175    int(6)
176  }
177}
178Done
179