1--TEST--
2Test array_slice() function : usage variations - Pass different data types as $preserve_keys arg
3--FILE--
4<?php
5/* Prototype  : array array_slice(array $input, int $offset [, int $length [, bool $preserve_keys]])
6 * Description: Returns elements specified by offset and length
7 * Source code: ext/standard/array.c
8 */
9
10/*
11 * Pass different data types as $preserve_keys argument to array_slice() to test behaviour
12 */
13
14echo "*** Testing array_slice() : usage variations ***\n";
15
16// Initialise function arguments not being substituted
17$input_array = array('one' => 1, 2, 99 => 3, 4);
18$offset = 0;
19$length = 3;
20
21//get an unset variable
22$unset_var = 10;
23unset ($unset_var);
24
25// get a class
26class classA
27{
28  public function __toString() {
29    return "Class A object";
30  }
31}
32
33// heredoc string
34$heredoc = <<<EOT
35hello world
36EOT;
37
38// unexpected values to be passed to $preserve_keys argument
39$inputs = array(
40
41       // int data
42/*1*/  0,
43       1,
44       12345,
45       -2345,
46
47       // float data
48/*5*/  10.5,
49       -10.5,
50       12.3456789000e10,
51       12.3456789000E-10,
52       .5,
53
54       // null data
55/*10*/ NULL,
56       null,
57
58       // boolean data
59/*12*/ true,
60       false,
61       TRUE,
62       FALSE,
63
64       // empty data
65/*16*/ "",
66       '',
67       array(),
68
69       // string data
70/*19*/ "string",
71       'string',
72       $heredoc,
73
74       // object data
75/*22*/ new classA(),
76
77       // undefined data
78/*23*/ @$undefined_var,
79
80       // unset data
81/*24*/ @$unset_var,
82);
83
84// loop through each element of $inputs to check the behavior of array_slice()
85$iterator = 1;
86foreach($inputs as $input) {
87  echo "\n-- Iteration $iterator --\n";
88  var_dump( array_slice($input_array, $offset, $length, $input) );
89  $iterator++;
90};
91
92echo "Done";
93?>
94--EXPECTF--
95*** Testing array_slice() : usage variations ***
96
97-- Iteration 1 --
98array(3) {
99  ["one"]=>
100  int(1)
101  [0]=>
102  int(2)
103  [1]=>
104  int(3)
105}
106
107-- Iteration 2 --
108array(3) {
109  ["one"]=>
110  int(1)
111  [0]=>
112  int(2)
113  [99]=>
114  int(3)
115}
116
117-- Iteration 3 --
118array(3) {
119  ["one"]=>
120  int(1)
121  [0]=>
122  int(2)
123  [99]=>
124  int(3)
125}
126
127-- Iteration 4 --
128array(3) {
129  ["one"]=>
130  int(1)
131  [0]=>
132  int(2)
133  [99]=>
134  int(3)
135}
136
137-- Iteration 5 --
138array(3) {
139  ["one"]=>
140  int(1)
141  [0]=>
142  int(2)
143  [99]=>
144  int(3)
145}
146
147-- Iteration 6 --
148array(3) {
149  ["one"]=>
150  int(1)
151  [0]=>
152  int(2)
153  [99]=>
154  int(3)
155}
156
157-- Iteration 7 --
158array(3) {
159  ["one"]=>
160  int(1)
161  [0]=>
162  int(2)
163  [99]=>
164  int(3)
165}
166
167-- Iteration 8 --
168array(3) {
169  ["one"]=>
170  int(1)
171  [0]=>
172  int(2)
173  [99]=>
174  int(3)
175}
176
177-- Iteration 9 --
178array(3) {
179  ["one"]=>
180  int(1)
181  [0]=>
182  int(2)
183  [99]=>
184  int(3)
185}
186
187-- Iteration 10 --
188array(3) {
189  ["one"]=>
190  int(1)
191  [0]=>
192  int(2)
193  [1]=>
194  int(3)
195}
196
197-- Iteration 11 --
198array(3) {
199  ["one"]=>
200  int(1)
201  [0]=>
202  int(2)
203  [1]=>
204  int(3)
205}
206
207-- Iteration 12 --
208array(3) {
209  ["one"]=>
210  int(1)
211  [0]=>
212  int(2)
213  [99]=>
214  int(3)
215}
216
217-- Iteration 13 --
218array(3) {
219  ["one"]=>
220  int(1)
221  [0]=>
222  int(2)
223  [1]=>
224  int(3)
225}
226
227-- Iteration 14 --
228array(3) {
229  ["one"]=>
230  int(1)
231  [0]=>
232  int(2)
233  [99]=>
234  int(3)
235}
236
237-- Iteration 15 --
238array(3) {
239  ["one"]=>
240  int(1)
241  [0]=>
242  int(2)
243  [1]=>
244  int(3)
245}
246
247-- Iteration 16 --
248array(3) {
249  ["one"]=>
250  int(1)
251  [0]=>
252  int(2)
253  [1]=>
254  int(3)
255}
256
257-- Iteration 17 --
258array(3) {
259  ["one"]=>
260  int(1)
261  [0]=>
262  int(2)
263  [1]=>
264  int(3)
265}
266
267-- Iteration 18 --
268
269Warning: array_slice() expects parameter 4 to be bool, array given in %s on line %d
270NULL
271
272-- Iteration 19 --
273array(3) {
274  ["one"]=>
275  int(1)
276  [0]=>
277  int(2)
278  [99]=>
279  int(3)
280}
281
282-- Iteration 20 --
283array(3) {
284  ["one"]=>
285  int(1)
286  [0]=>
287  int(2)
288  [99]=>
289  int(3)
290}
291
292-- Iteration 21 --
293array(3) {
294  ["one"]=>
295  int(1)
296  [0]=>
297  int(2)
298  [99]=>
299  int(3)
300}
301
302-- Iteration 22 --
303
304Warning: array_slice() expects parameter 4 to be bool, object given in %s on line %d
305NULL
306
307-- Iteration 23 --
308array(3) {
309  ["one"]=>
310  int(1)
311  [0]=>
312  int(2)
313  [1]=>
314  int(3)
315}
316
317-- Iteration 24 --
318array(3) {
319  ["one"]=>
320  int(1)
321  [0]=>
322  int(2)
323  [1]=>
324  int(3)
325}
326Done
327