1--TEST--
2Test explode() function : usage variations - test values for $limit argument
3--FILE--
4<?php
5
6/* Prototype  : array explode  ( string $delimiter  , string $string  [, int $limit  ] )
7 * Description: Split a string by string.
8 * Source code: ext/standard/string.c
9*/
10
11echo "*** Testing explode() function: with unexpected inputs for 'limit' argument ***\n";
12
13//get an unset variable
14$unset_var = 'string_val';
15unset($unset_var);
16
17//defining a class
18class sample  {
19  public function __toString() {
20    return "sample object";
21  }
22}
23
24//getting the resource
25$file_handle = fopen(__FILE__, "r");
26
27// array with different values for $delimiter
28$limits =  array (
29
30		  // integer values
31/*1*/	  0,
32		  1,
33		  255,
34		  256,
35	      2147483647,
36		  -2147483648,
37
38		  // float values
39/*7*/	  10.5,
40		  -20.5,
41		  10.1234567e5,
42
43		  // array values
44/*10*/	  array(),
45		  array(0),
46		  array(1, 2),
47
48		  // boolean values
49/*13*/	  true,
50		  false,
51		  TRUE,
52		  FALSE,
53
54		  // null values
55/*17*/	  NULL,
56		  null,
57
58		  // objects
59/*19*/	  new sample(),
60
61		  // resource
62/*20*/	  $file_handle,
63
64		  // undefined variable
65/*21*/	  @$undefined_var,
66
67		  // unset variable
68/*22*/	  @$unset_var
69);
70
71// loop through with each element of the $limits array to test explode() function
72$count = 1;
73$delimiter = " ";
74$string = "piece1 piece2 piece3 piece4 piece5 piece6";
75foreach($limits as $limit) {
76  echo "-- Iteration $count --\n";
77  var_dump( explode($delimiter, $string, $limit) );
78  $count ++;
79}
80
81fclose($file_handle);  //closing the file handle
82
83?>
84===Done===
85--EXPECTF--
86*** Testing explode() function: with unexpected inputs for 'limit' argument ***
87-- Iteration 1 --
88array(1) {
89  [0]=>
90  string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
91}
92-- Iteration 2 --
93array(1) {
94  [0]=>
95  string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
96}
97-- Iteration 3 --
98array(6) {
99  [0]=>
100  string(6) "piece1"
101  [1]=>
102  string(6) "piece2"
103  [2]=>
104  string(6) "piece3"
105  [3]=>
106  string(6) "piece4"
107  [4]=>
108  string(6) "piece5"
109  [5]=>
110  string(6) "piece6"
111}
112-- Iteration 4 --
113array(6) {
114  [0]=>
115  string(6) "piece1"
116  [1]=>
117  string(6) "piece2"
118  [2]=>
119  string(6) "piece3"
120  [3]=>
121  string(6) "piece4"
122  [4]=>
123  string(6) "piece5"
124  [5]=>
125  string(6) "piece6"
126}
127-- Iteration 5 --
128array(6) {
129  [0]=>
130  string(6) "piece1"
131  [1]=>
132  string(6) "piece2"
133  [2]=>
134  string(6) "piece3"
135  [3]=>
136  string(6) "piece4"
137  [4]=>
138  string(6) "piece5"
139  [5]=>
140  string(6) "piece6"
141}
142-- Iteration 6 --
143array(0) {
144}
145-- Iteration 7 --
146array(6) {
147  [0]=>
148  string(6) "piece1"
149  [1]=>
150  string(6) "piece2"
151  [2]=>
152  string(6) "piece3"
153  [3]=>
154  string(6) "piece4"
155  [4]=>
156  string(6) "piece5"
157  [5]=>
158  string(6) "piece6"
159}
160-- Iteration 8 --
161array(0) {
162}
163-- Iteration 9 --
164array(6) {
165  [0]=>
166  string(6) "piece1"
167  [1]=>
168  string(6) "piece2"
169  [2]=>
170  string(6) "piece3"
171  [3]=>
172  string(6) "piece4"
173  [4]=>
174  string(6) "piece5"
175  [5]=>
176  string(6) "piece6"
177}
178-- Iteration 10 --
179
180Warning: explode() expects parameter 3 to be integer, array given in %s on line %d
181NULL
182-- Iteration 11 --
183
184Warning: explode() expects parameter 3 to be integer, array given in %s on line %d
185NULL
186-- Iteration 12 --
187
188Warning: explode() expects parameter 3 to be integer, array given in %s on line %d
189NULL
190-- Iteration 13 --
191array(1) {
192  [0]=>
193  string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
194}
195-- Iteration 14 --
196array(1) {
197  [0]=>
198  string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
199}
200-- Iteration 15 --
201array(1) {
202  [0]=>
203  string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
204}
205-- Iteration 16 --
206array(1) {
207  [0]=>
208  string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
209}
210-- Iteration 17 --
211array(1) {
212  [0]=>
213  string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
214}
215-- Iteration 18 --
216array(1) {
217  [0]=>
218  string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
219}
220-- Iteration 19 --
221
222Warning: explode() expects parameter 3 to be integer, object given in %s on line %d
223NULL
224-- Iteration 20 --
225
226Warning: explode() expects parameter 3 to be integer, resource given in %s on line %d
227NULL
228-- Iteration 21 --
229array(1) {
230  [0]=>
231  string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
232}
233-- Iteration 22 --
234array(1) {
235  [0]=>
236  string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
237}
238===Done===