1--TEST--
2Test array_combine() function : usage variations - associative array with different keys(Bug#43424)
3--FILE--
4<?php
5/* Prototype  : array array_combine(array $keys, array $values)
6 * Description: Creates an array by using the elements of the first parameter as keys
7 *              and the elements of the second as the corresponding values
8 * Source code: ext/standard/array.c
9*/
10
11/*
12 * Testing the functionality of array_combine() by passing different
13 * associative arrays having different possible keys to $keys argument and
14 * associative arrays having different possible keys to $values argument.
15*/
16
17echo "*** Testing array_combine() : assoc array with diff keys to both \$keys and \$values argument ***\n";
18// get an unset variable
19$unset_var = 10;
20unset ($unset_var);
21
22// get a resource variable
23$fp = fopen(__FILE__, "r");
24
25// get a class
26class classA
27{
28  public function __toString(){
29    return "Class A object";
30  }
31}
32
33// get a heredoc string
34$heredoc = <<<EOT
35Hello world
36EOT;
37
38// different variations of associative arrays to be passed to $arr1 argument
39$arrays = array (
40
41       // empty array
42/*1*/  array(),
43
44       // arrays with integer keys
45       array(0 => "0"),
46       array(1 => "1"),
47       array(1 => "1", 2 => "2", 3 => "3", 4 => "4"),
48
49       // arrays with float keys
50/*5*/  array(2.3333 => "float"),
51       array(1.2 => "f1", 3.33 => "f2",
52             4.89999922839999 => "f3",
53             33333333.333333 => "f4"),
54
55       // arrays with string keys
56/*7*/  array('\tHello' => 111, 're\td' => "color",
57             '\v\fworld' => 2.2, 'pen\n' => 33),
58       array("\tHello" => 111, "re\td" => "color",
59             "\v\fworld" => 2.2, "pen\n" => 33),
60       array("hello", $heredoc => "string"), // heredoc
61
62       // array with object, unset variable and resource variable
63/*10*/ array(new classA() => 11, @$unset_var => "hello", $fp => 'resource'),
64
65       // array with mixed keys
66/*11*/ array('hello' => 1, new classA() => 2, "fruit" => 2.2,
67             $fp => 'resource', 133 => "int", 444.432 => "float",
68             @$unset_var => "unset", $heredoc => "heredoc")
69);
70
71// array to be passsed to $arr2 argument
72$arr2 = array(0 => 0, 2 => "float", 4 => "f3", 33333333 => "f4",
73              "\tHello" => 111, 2.2, 'color', "Hello world" => "string",
74              "pen\n" => 33, new classA() => 11, 133 => "int");
75
76// loop through each sub-array within $arrays to check the behavior of array_combine()
77// same arrays are passed to both $keys and $values
78$iterator = 1;
79foreach($arrays as $array) {
80  echo "-- Iteration $iterator --\n";
81  var_dump( array_combine($array, $array) );
82  $iterator++;
83}
84
85// close the file resource used
86fclose($fp);
87
88echo "Done";
89?>
90--EXPECTF--
91*** Testing array_combine() : assoc array with diff keys to both $keys and $values argument ***
92
93Warning: Illegal offset type in %s on line %d
94
95Warning: Illegal offset type in %s on line %d
96
97Warning: Illegal offset type in %s on line %d
98
99Warning: Illegal offset type in %s on line %d
100
101Warning: Illegal offset type in %s on line %d
102-- Iteration 1 --
103
104Warning: array_combine(): Both parameters should have at least 1 element in %s on line %d
105bool(false)
106-- Iteration 2 --
107array(1) {
108  [0]=>
109  string(1) "0"
110}
111-- Iteration 3 --
112array(1) {
113  [1]=>
114  string(1) "1"
115}
116-- Iteration 4 --
117array(4) {
118  [1]=>
119  string(1) "1"
120  [2]=>
121  string(1) "2"
122  [3]=>
123  string(1) "3"
124  [4]=>
125  string(1) "4"
126}
127-- Iteration 5 --
128array(1) {
129  ["float"]=>
130  string(5) "float"
131}
132-- Iteration 6 --
133array(4) {
134  ["f1"]=>
135  string(2) "f1"
136  ["f2"]=>
137  string(2) "f2"
138  ["f3"]=>
139  string(2) "f3"
140  ["f4"]=>
141  string(2) "f4"
142}
143-- Iteration 7 --
144array(4) {
145  [111]=>
146  int(111)
147  ["color"]=>
148  string(5) "color"
149  ["2.2"]=>
150  float(2.2)
151  [33]=>
152  int(33)
153}
154-- Iteration 8 --
155array(4) {
156  [111]=>
157  int(111)
158  ["color"]=>
159  string(5) "color"
160  ["2.2"]=>
161  float(2.2)
162  [33]=>
163  int(33)
164}
165-- Iteration 9 --
166array(2) {
167  ["hello"]=>
168  string(5) "hello"
169  ["string"]=>
170  string(6) "string"
171}
172-- Iteration 10 --
173array(1) {
174  ["hello"]=>
175  string(5) "hello"
176}
177-- Iteration 11 --
178array(6) {
179  [1]=>
180  int(1)
181  ["2.2"]=>
182  float(2.2)
183  ["int"]=>
184  string(3) "int"
185  ["float"]=>
186  string(5) "float"
187  ["unset"]=>
188  string(5) "unset"
189  ["heredoc"]=>
190  string(7) "heredoc"
191}
192Done
193