1--TEST--
2Test array_unique() function : usage variations - associative array with different keys
3--FILE--
4<?php
5/* Prototype  : array array_unique(array $input)
6 * Description: Removes duplicate values from array
7 * Source code: ext/standard/array.c
8*/
9
10/*
11 * Testing the functionality of array_unique() by passing different
12 * associative arrays having different keys to $input argument.
13*/
14
15echo "*** Testing array_unique() : assoc. array with diff. keys passed to \$input argument ***\n";
16
17// get an unset variable
18$unset_var = 10;
19unset ($unset_var);
20
21// get a resource variable
22$fp = fopen(__FILE__, "r");
23
24// get a class
25class classA
26{
27  public function __toString(){
28    return "Class A object";
29  }
30}
31
32// get a heredoc string
33$heredoc = <<<EOT
34Hello world
35EOT;
36
37// different associative arrays to be passed to $input argument
38$inputs = array (
39/*1*/  // arrays with integer keys
40       array(0 => "0", 1 => "0"),
41       array(1 => "1", 2 => "2", 3 => 1, 4 => "4"),
42
43       // arrays with float keys
44/*3*/  array(2.3333 => "float", 44.44 => "float"),
45       array(1.2 => "f1", 3.33 => "f2", 4.89999922839999 => "f1", 3333333.333333 => "f4"),
46
47       // arrays with string keys
48/*5*/  array('\tHello' => 111, 're\td' => "color", '\v\fworld' => 2.2, 'pen\n' => 111),
49       array("\tHello" => 111, "re\td" => "color", "\v\fworld" => 2.2, "pen\n" => 111),
50       array("hello", $heredoc => "string", "string"),
51
52       // array with object, unset variable and resource variable
53/*8*/ array(new classA() => 11, @$unset_var => "hello", $fp => 'resource', 11, "hello"),
54);
55
56// loop through each sub-array of $inputs to check the behavior of array_unique()
57$iterator = 1;
58foreach($inputs as $input) {
59  echo "-- Iteration $iterator --\n";
60  var_dump( array_unique($input) );
61  $iterator++;
62}
63
64fclose($fp);
65
66echo "Done";
67?>
68--EXPECTF--
69*** Testing array_unique() : assoc. array with diff. keys passed to $input argument ***
70
71Warning: Illegal offset type in %s on line %d
72
73Notice: Resource ID#%d used as offset, casting to integer (%d) in %s on line %d
74-- Iteration 1 --
75array(1) {
76  [0]=>
77  string(1) "0"
78}
79-- Iteration 2 --
80array(3) {
81  [1]=>
82  string(1) "1"
83  [2]=>
84  string(1) "2"
85  [4]=>
86  string(1) "4"
87}
88-- Iteration 3 --
89array(1) {
90  [2]=>
91  string(5) "float"
92}
93-- Iteration 4 --
94array(3) {
95  [1]=>
96  string(2) "f1"
97  [3]=>
98  string(2) "f2"
99  [3333333]=>
100  string(2) "f4"
101}
102-- Iteration 5 --
103array(3) {
104  ["\tHello"]=>
105  int(111)
106  ["re\td"]=>
107  string(5) "color"
108  ["\v\fworld"]=>
109  float(2.2)
110}
111-- Iteration 6 --
112array(3) {
113  ["	Hello"]=>
114  int(111)
115  ["re	d"]=>
116  string(5) "color"
117  ["world"]=>
118  float(2.2)
119}
120-- Iteration 7 --
121array(2) {
122  [0]=>
123  string(5) "hello"
124  ["Hello world"]=>
125  string(6) "string"
126}
127-- Iteration 8 --
128array(3) {
129  [""]=>
130  string(5) "hello"
131  [5]=>
132  string(8) "resource"
133  [6]=>
134  int(11)
135}
136Done
137