1--TEST--
2Test array_slice() function : usage variations - different data types as keys in an array
3--FILE--
4<?php
5/*
6 * Pass different data types as keys in an array to array_slice()
7 * to test how $preserve_keys treats them
8 */
9
10echo "*** Testing array_slice() : usage variations ***\n";
11
12// Initialise function arguments not being substituted
13$offset = 0;
14$length = 10; // to ensure all elements are displayed
15
16//get an unset variable
17$unset_var = 10;
18unset ($unset_var);
19
20// heredoc string
21$heredoc = <<<EOT
22hello world
23EOT;
24
25// arrays of different data types to be passed as $input
26$inputs = array(
27
28       // int data
29/*1*/  'int' => array(
30       0 => 'zero',
31       1 => 'one',
32       12345 => 'positive',
33       -2345 => 'negative',
34       ),
35
36       // null data
37/*4*/ 'null uppercase' => array(
38       NULL => 'null 1',
39       ),
40
41/*5*/  'null lowercase' => array(
42       null => 'null 2',
43       ),
44
45       // boolean data
46/*6*/ 'bool lowercase' => array(
47       true => 'lowert',
48       false => 'lowerf',
49       ),
50
51/*7*/  'bool uppercase' => array(
52       TRUE => 'uppert',
53       FALSE => 'upperf',
54       ),
55
56       // empty data
57/*8*/ 'empty double quotes' => array(
58       "" => 'emptyd',
59       ),
60
61/*9*/  'empty single quotes' => array(
62       '' => 'emptys',
63       ),
64
65       // string data
66/*10*/ 'string' => array(
67       "stringd" => 'stringd',
68       'strings' => 'strings',
69       $heredoc => 'stringh',
70       ),
71
72       // undefined data
73/*11*/ 'undefined' => array(
74       @$undefined_var => 'undefined',
75       ),
76
77       // unset data
78/*12*/ 'unset' => array(
79       @$unset_var => 'unset',
80       ),
81);
82
83// loop through each element of $inputs to check the behavior of array_slice()
84$iterator = 1;
85foreach($inputs as $type => $input) {
86  echo "\n-- Iteration $iterator : key type is $type --\n";
87  echo "\$preserve_keys = TRUE\n";
88  var_dump( array_slice($input, $offset, $length, true) );
89  echo "\$preserve_keys = FALSE\n";
90  var_dump( array_slice($input, $offset, $length, false) );
91  $iterator++;
92};
93
94echo "Done";
95?>
96--EXPECT--
97*** Testing array_slice() : usage variations ***
98
99-- Iteration 1 : key type is int --
100$preserve_keys = TRUE
101array(4) {
102  [0]=>
103  string(4) "zero"
104  [1]=>
105  string(3) "one"
106  [12345]=>
107  string(8) "positive"
108  [-2345]=>
109  string(8) "negative"
110}
111$preserve_keys = FALSE
112array(4) {
113  [0]=>
114  string(4) "zero"
115  [1]=>
116  string(3) "one"
117  [2]=>
118  string(8) "positive"
119  [3]=>
120  string(8) "negative"
121}
122
123-- Iteration 2 : key type is null uppercase --
124$preserve_keys = TRUE
125array(1) {
126  [""]=>
127  string(6) "null 1"
128}
129$preserve_keys = FALSE
130array(1) {
131  [""]=>
132  string(6) "null 1"
133}
134
135-- Iteration 3 : key type is null lowercase --
136$preserve_keys = TRUE
137array(1) {
138  [""]=>
139  string(6) "null 2"
140}
141$preserve_keys = FALSE
142array(1) {
143  [""]=>
144  string(6) "null 2"
145}
146
147-- Iteration 4 : key type is bool lowercase --
148$preserve_keys = TRUE
149array(2) {
150  [1]=>
151  string(6) "lowert"
152  [0]=>
153  string(6) "lowerf"
154}
155$preserve_keys = FALSE
156array(2) {
157  [0]=>
158  string(6) "lowert"
159  [1]=>
160  string(6) "lowerf"
161}
162
163-- Iteration 5 : key type is bool uppercase --
164$preserve_keys = TRUE
165array(2) {
166  [1]=>
167  string(6) "uppert"
168  [0]=>
169  string(6) "upperf"
170}
171$preserve_keys = FALSE
172array(2) {
173  [0]=>
174  string(6) "uppert"
175  [1]=>
176  string(6) "upperf"
177}
178
179-- Iteration 6 : key type is empty double quotes --
180$preserve_keys = TRUE
181array(1) {
182  [""]=>
183  string(6) "emptyd"
184}
185$preserve_keys = FALSE
186array(1) {
187  [""]=>
188  string(6) "emptyd"
189}
190
191-- Iteration 7 : key type is empty single quotes --
192$preserve_keys = TRUE
193array(1) {
194  [""]=>
195  string(6) "emptys"
196}
197$preserve_keys = FALSE
198array(1) {
199  [""]=>
200  string(6) "emptys"
201}
202
203-- Iteration 8 : key type is string --
204$preserve_keys = TRUE
205array(3) {
206  ["stringd"]=>
207  string(7) "stringd"
208  ["strings"]=>
209  string(7) "strings"
210  ["hello world"]=>
211  string(7) "stringh"
212}
213$preserve_keys = FALSE
214array(3) {
215  ["stringd"]=>
216  string(7) "stringd"
217  ["strings"]=>
218  string(7) "strings"
219  ["hello world"]=>
220  string(7) "stringh"
221}
222
223-- Iteration 9 : key type is undefined --
224$preserve_keys = TRUE
225array(1) {
226  [""]=>
227  string(9) "undefined"
228}
229$preserve_keys = FALSE
230array(1) {
231  [""]=>
232  string(9) "undefined"
233}
234
235-- Iteration 10 : key type is unset --
236$preserve_keys = TRUE
237array(1) {
238  [""]=>
239  string(5) "unset"
240}
241$preserve_keys = FALSE
242array(1) {
243  [""]=>
244  string(5) "unset"
245}
246Done
247