1--TEST--
2Test each() function : usage variations - keys of different data types
3--FILE--
4<?php
5/* Prototype  : array each(array $arr)
6 * Description: Return the currently pointed key..value pair in the passed array,
7 * and advance the pointer to the next element
8 * Source code: Zend/zend_builtin_functions.c
9 */
10
11/*
12 * Pass each() arrays where the keys are different data types to test behaviour
13 */
14
15echo "*** Testing each() : usage variations ***\n";
16
17//get an unset variable
18$unset_var = 10;
19unset ($unset_var);
20
21// heredoc string
22$heredoc = <<<EOT
23hello world
24EOT;
25
26// unexpected values to be passed as $arr
27$inputs = array(
28
29       // int data
30/*1*/  'int' => array(
31       0 => 'zero',
32       1 => 'one',
33       12345 => 'positive',
34       -2345 => 'negative',
35       ),
36
37       // float data
38/*2*/  'float' => array(
39       10.5 => 'positive',
40       -10.5 => 'negative',
41       .5 => 'half',
42       ),
43
44/*3*/  'extreme floats' => array(
45       12.3456789000e6 => 'large',
46       12.3456789000E-10 => 'small',
47       ),
48
49       // null data
50/*4*/ 'null uppercase' => array(
51       NULL => 'null 1',
52       ),
53
54/*5*/  'null lowercase' => array(
55       null => 'null 2',
56       ),
57
58       // boolean data
59/*6*/ 'bool lowercase' => array(
60       true => 'lowert',
61       false => 'lowerf',
62       ),
63
64/*7*/  'bool uppercase' => array(
65       TRUE => 'uppert',
66       FALSE => 'upperf',
67       ),
68
69       // empty data
70/*8*/ 'empty double quotes' => array(
71       "" => 'emptyd',
72       ),
73
74/*9*/  'empty single quotes' => array(
75       '' => 'emptys',
76       ),
77
78       // string data
79/*10*/ 'string' => array(
80       "stringd" => 'stringd',
81       'strings' => 'strings',
82       $heredoc => 'stringh',
83       ),
84
85       // undefined data
86/*11*/ 'undefined' => array(
87       @$undefined_var => 'undefined',
88       ),
89
90       // unset data
91/*12*/ 'unset' => array(
92       @$unset_var => 'unset',
93       ),
94);
95
96// loop through each element of $inputs to check the behavior of each()
97$iterator = 1;
98foreach($inputs as $key => $input) {
99  echo "\n-- Iteration $iterator: $key data --\n";
100  var_dump( each($input) );
101  $iterator++;
102};
103
104echo "Done";
105?>
106
107--EXPECTF--
108*** Testing each() : usage variations ***
109
110-- Iteration 1: int data --
111array(4) {
112  [1]=>
113  string(4) "zero"
114  ["value"]=>
115  string(4) "zero"
116  [0]=>
117  int(0)
118  ["key"]=>
119  int(0)
120}
121
122-- Iteration 2: float data --
123array(4) {
124  [1]=>
125  string(8) "positive"
126  ["value"]=>
127  string(8) "positive"
128  [0]=>
129  int(10)
130  ["key"]=>
131  int(10)
132}
133
134-- Iteration 3: extreme floats data --
135array(4) {
136  [1]=>
137  string(5) "large"
138  ["value"]=>
139  string(5) "large"
140  [0]=>
141  int(12345678)
142  ["key"]=>
143  int(12345678)
144}
145
146-- Iteration 4: null uppercase data --
147array(4) {
148  [1]=>
149  string(6) "null 1"
150  ["value"]=>
151  string(6) "null 1"
152  [0]=>
153  string(0) ""
154  ["key"]=>
155  string(0) ""
156}
157
158-- Iteration 5: null lowercase data --
159array(4) {
160  [1]=>
161  string(6) "null 2"
162  ["value"]=>
163  string(6) "null 2"
164  [0]=>
165  string(0) ""
166  ["key"]=>
167  string(0) ""
168}
169
170-- Iteration 6: bool lowercase data --
171array(4) {
172  [1]=>
173  string(6) "lowert"
174  ["value"]=>
175  string(6) "lowert"
176  [0]=>
177  int(1)
178  ["key"]=>
179  int(1)
180}
181
182-- Iteration 7: bool uppercase data --
183array(4) {
184  [1]=>
185  string(6) "uppert"
186  ["value"]=>
187  string(6) "uppert"
188  [0]=>
189  int(1)
190  ["key"]=>
191  int(1)
192}
193
194-- Iteration 8: empty double quotes data --
195array(4) {
196  [1]=>
197  string(6) "emptyd"
198  ["value"]=>
199  string(6) "emptyd"
200  [0]=>
201  string(0) ""
202  ["key"]=>
203  string(0) ""
204}
205
206-- Iteration 9: empty single quotes data --
207array(4) {
208  [1]=>
209  string(6) "emptys"
210  ["value"]=>
211  string(6) "emptys"
212  [0]=>
213  string(0) ""
214  ["key"]=>
215  string(0) ""
216}
217
218-- Iteration 10: string data --
219array(4) {
220  [1]=>
221  string(7) "stringd"
222  ["value"]=>
223  string(7) "stringd"
224  [0]=>
225  string(7) "stringd"
226  ["key"]=>
227  string(7) "stringd"
228}
229
230-- Iteration 11: undefined data --
231array(4) {
232  [1]=>
233  string(9) "undefined"
234  ["value"]=>
235  string(9) "undefined"
236  [0]=>
237  string(0) ""
238  ["key"]=>
239  string(0) ""
240}
241
242-- Iteration 12: unset data --
243array(4) {
244  [1]=>
245  string(5) "unset"
246  ["value"]=>
247  string(5) "unset"
248  [0]=>
249  string(0) ""
250  ["key"]=>
251  string(0) ""
252}
253Done