1--TEST--
2Test array_walk() function : usage variations - 'input' argument as diff. associative arrays
3--FILE--
4<?php
5/* Prototype  : bool array_walk(array $input, string $funcname [, mixed $userdata])
6 * Description: Apply a user function to every member of an array
7 * Source code: ext/standard/array.c
8*/
9
10/*
11 * Passing 'input' argument as an associative array
12 *    with Numeric & string keys
13*/
14
15echo "*** Testing array_walk() : 'input' as an associative array ***\n";
16
17// callback functions
18/* Prototype : for_numeric( int $value, int $key, int $user_data)
19 * Parameters : $value - value from key/value pair of the array
20 *              $key - key from key/value pair of the array
21 *              $user_data - data to be added to 'value'
22 * Description : Function adds values with keys & user_data
23 */
24function for_numeric($value, $key, $user_data)
25{
26  // dump the input values to see if they are
27  // passed with correct type
28  var_dump($key);
29  var_dump($value);
30  var_dump($user_data);
31  echo "\n"; // new line to separate the output between each element
32}
33
34/* Prototype : for_string( string $value, string $key)
35 * Parameters : $value - values in given input array
36 *              $key - keys in given input array
37 * Description : Function appends key to the value
38 */
39function for_string($value, $key)
40{
41  // dump the input values to see if they are
42  // passed with correct type
43  var_dump($key);
44  var_dump($value);
45  echo "\n"; // new line to separate the output between each element
46}
47
48/* Prototype : for_mixed( mixed $value, mixed $key)
49 * Parameters : $value - values in given input array
50 *              $key - keys in given input array
51 * Description : Function displays each element of an array with keys
52 */
53function for_mixed($value, $key)
54{
55  // dump the input values to see if they are
56  // passed with correct type
57  var_dump($key);
58  var_dump($value);
59  echo "\n"; // new line to separate the output between each element
60}
61
62// Numeric keys
63$input = array( 1 => 25, 5 => 12, 0 => -80, -2 => 100, 5 => 30);
64echo "-- Associative array with numeric keys --\n";
65var_dump( array_walk($input, "for_numeric", 10));
66
67// String keys
68$input = array( "a" => "Apple", 'b' => 'Bananna', "c" => "carrot", 'o' => "Orange");
69echo "-- Associative array with string keys --\n";
70var_dump( array_walk($input, "for_string"));
71
72// binary keys
73$input = array( b"a" => "Apple", b"b" => "Banana");
74echo "-- Associative array with binary keys --\n";
75var_dump( array_walk($input, "for_string"));
76
77// Mixed keys - numeric/string
78$input = array( 0 => 1, 1 => 2, "a" => "Apple", "b" => "Banana", 2 =>3);
79echo "-- Associative array with numeric/string keys --\n";
80var_dump( array_walk($input, "for_mixed"));
81
82echo "Done"
83?>
84--EXPECTF--
85*** Testing array_walk() : 'input' as an associative array ***
86-- Associative array with numeric keys --
87int(1)
88int(25)
89int(10)
90
91int(5)
92int(30)
93int(10)
94
95int(0)
96int(-80)
97int(10)
98
99int(-2)
100int(100)
101int(10)
102
103bool(true)
104-- Associative array with string keys --
105string(1) "a"
106string(5) "Apple"
107
108string(1) "b"
109string(7) "Bananna"
110
111string(1) "c"
112string(6) "carrot"
113
114string(1) "o"
115string(6) "Orange"
116
117bool(true)
118-- Associative array with binary keys --
119string(1) "a"
120string(5) "Apple"
121
122string(1) "b"
123string(6) "Banana"
124
125bool(true)
126-- Associative array with numeric/string keys --
127int(0)
128int(1)
129
130int(1)
131int(2)
132
133string(1) "a"
134string(5) "Apple"
135
136string(1) "b"
137string(6) "Banana"
138
139int(2)
140int(3)
141
142bool(true)
143Done
144