1--TEST--
2Test array_change_key_case() function : usage variations - different data types as keys
3--FILE--
4<?php
5/* Prototype  : array array_change_key_case(array $input [, int $case])
6 * Description: Returns an array with all string keys lowercased [or uppercased]
7 * Source code: ext/standard/array.c
8 */
9
10/*
11 * Pass arrays with different data types as keys to array_change_key_case()
12 * to test conversion
13 */
14
15echo "*** Testing array_change_key_case() : usage variations ***\n";
16
17//get an unset variable
18$unset_var = 10;
19unset ($unset_var);
20
21// heredoc string
22$heredoc = <<<EOT
23hello world
24EOT;
25
26// arrays of different data types to be passed to $input argument
27$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       'extreme floats' => array(
45       12.3456789000e6 => 'large',
46       12.3456789000E-10 => 'small',
47       ),
48
49       // null data
50/*3*/ 'null uppercase' => array(
51       NULL => 'null 1',
52       ),
53       'null lowercase' => array(
54       null => 'null 2',
55       ),
56
57       // boolean data
58/*4*/ 'bool lowercase' => array(
59       true => 'lowert',
60       false => 'lowerf',
61       ),
62       'bool uppercase' => array(
63       TRUE => 'uppert',
64       FALSE => 'upperf',
65       ),
66
67       // empty data
68/*5*/ 'empty double quotes' => array(
69       "" => 'emptyd',
70       ),
71       'empty single quotes' => array(
72       '' => 'emptys',
73       ),
74
75       // string data
76/*6*/ 'string' => array(
77       "stringd" => 'stringd',
78       'strings' => 'strings',
79       $heredoc => 'stringh',
80       ),
81
82       // undefined data
83/*8*/ 'undefined' => array(
84       @$undefined_var => 'undefined',
85       ),
86
87       // unset data
88/*9*/ 'unset' => array(
89       @$unset_var => 'unset',
90       ),
91);
92
93// loop through each sub-array of $inputs to check the behavior of array_change_key_case()
94$iterator = 1;
95foreach($inputs as $key => $input) {
96  echo "\n-- Iteration $iterator : $key data --\n";
97  var_dump( array_change_key_case($input, CASE_UPPER) );
98  $iterator++;
99};
100
101echo "Done";
102?>
103--EXPECT--
104*** Testing array_change_key_case() : usage variations ***
105
106-- Iteration 1 : int data --
107array(4) {
108  [0]=>
109  string(4) "zero"
110  [1]=>
111  string(3) "one"
112  [12345]=>
113  string(8) "positive"
114  [-2345]=>
115  string(8) "negative"
116}
117
118-- Iteration 2 : float data --
119array(3) {
120  [10]=>
121  string(8) "positive"
122  [-10]=>
123  string(8) "negative"
124  [0]=>
125  string(4) "half"
126}
127
128-- Iteration 3 : extreme floats data --
129array(2) {
130  [12345678]=>
131  string(5) "large"
132  [0]=>
133  string(5) "small"
134}
135
136-- Iteration 4 : null uppercase data --
137array(1) {
138  [""]=>
139  string(6) "null 1"
140}
141
142-- Iteration 5 : null lowercase data --
143array(1) {
144  [""]=>
145  string(6) "null 2"
146}
147
148-- Iteration 6 : bool lowercase data --
149array(2) {
150  [1]=>
151  string(6) "lowert"
152  [0]=>
153  string(6) "lowerf"
154}
155
156-- Iteration 7 : bool uppercase data --
157array(2) {
158  [1]=>
159  string(6) "uppert"
160  [0]=>
161  string(6) "upperf"
162}
163
164-- Iteration 8 : empty double quotes data --
165array(1) {
166  [""]=>
167  string(6) "emptyd"
168}
169
170-- Iteration 9 : empty single quotes data --
171array(1) {
172  [""]=>
173  string(6) "emptys"
174}
175
176-- Iteration 10 : string data --
177array(3) {
178  ["STRINGD"]=>
179  string(7) "stringd"
180  ["STRINGS"]=>
181  string(7) "strings"
182  ["HELLO WORLD"]=>
183  string(7) "stringh"
184}
185
186-- Iteration 11 : undefined data --
187array(1) {
188  [""]=>
189  string(9) "undefined"
190}
191
192-- Iteration 12 : unset data --
193array(1) {
194  [""]=>
195  string(5) "unset"
196}
197Done
198