1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
--TEST--
Test array_map() function : usage variations - null value for 'callback' argument
--FILE--
<?php
/* Prototype : array array_map ( callback $callback , array $arr1 [, array $... ] )
* Description: Applies the callback to the elements of the given arrays
* Source code: ext/standard/array.c
*/
/*
* Test array_map() by passing null values for $callback argument and testing whether shortest
* array will be extended with empty elements
*/
echo "*** Testing array_map() : null value for 'callback' argument ***\n";
// arrays to be passed as arguments
$arr1 = array(1, 2);
$arr2 = array("one", "two");
$arr3 = array(1.1, 2.2);
// get an unset variable
$unset_var = 10;
unset ($unset_var);
/* calling array_map() with null callback */
echo "-- with null --\n";
var_dump( array_map(null, $arr1, $arr2, $arr3) );
var_dump( array_map(NULL, $arr1, $arr2, $arr3) );
echo "-- with unset variable --\n";
var_dump( array_map(@$unset_var, $arr1, $arr2, $arr3) );
echo "-- with undefined variable --\n";
var_dump( array_map(@$undefined_var, $arr1) );
echo "-- with empty string --\n";
var_dump( array_map("", $arr1, $arr2) );
echo "-- with empty array --\n";
var_dump( array_map(array(), $arr1, $arr2) );
echo "Done";
?>
--EXPECTF--
*** Testing array_map() : null value for 'callback' argument ***
-- with null --
array(2) {
[0]=>
array(3) {
[0]=>
int(1)
[1]=>
string(3) "one"
[2]=>
float(1.1)
}
[1]=>
array(3) {
[0]=>
int(2)
[1]=>
string(3) "two"
[2]=>
float(2.2)
}
}
array(2) {
[0]=>
array(3) {
[0]=>
int(1)
[1]=>
string(3) "one"
[2]=>
float(1.1)
}
[1]=>
array(3) {
[0]=>
int(2)
[1]=>
string(3) "two"
[2]=>
float(2.2)
}
}
-- with unset variable --
array(2) {
[0]=>
array(3) {
[0]=>
int(1)
[1]=>
string(3) "one"
[2]=>
float(1.1)
}
[1]=>
array(3) {
[0]=>
int(2)
[1]=>
string(3) "two"
[2]=>
float(2.2)
}
}
-- with undefined variable --
array(2) {
[0]=>
int(1)
[1]=>
int(2)
}
-- with empty string --
Warning: array_map() expects parameter 1 to be a valid callback, function '' not found or invalid function name in %s on line %d
NULL
-- with empty array --
Warning: array_map() expects parameter 1 to be a valid callback, array must have exactly two members in %s on line %d
NULL
Done
|
