1--TEST--
2Test count() function : usage variations - Pass different data types as $mode arg
3--FILE--
4<?php
5/* Prototype  : int count(mixed $var [, int $mode])
6 * Description: Count the number of elements in a variable (usually an array)
7 * Source code: ext/standard/array.c
8 */
9
10/*
11 * Pass different data types as $mode argument to count() to test behaviour
12 */
13
14echo "*** Testing count() : usage variations ***\n";
15
16// Initialise function arguments not being substituted
17$var = array(1, 2, array ('one', 'two'));
18
19//get an unset variable
20$unset_var = 10;
21unset ($unset_var);
22
23// get a class
24class classA
25{
26  public function __toString() {
27    return "Class A object";
28  }
29}
30
31// heredoc string
32$heredoc = <<<EOT
33hello world
34EOT;
35
36// get a resource variable
37$fp = fopen(__FILE__, "r");
38
39// unexpected values to be passed to $mode argument
40$inputs = array(
41
42       // int data
43/*1*/  0,
44       1,
45       12345,
46       -2345,
47
48       // float data
49/*5*/  10.5,
50       -10.5,
51       12.3456789000e10,
52       12.3456789000E-10,
53       .5,
54
55       // null data
56/*10*/ NULL,
57       null,
58
59       // boolean data
60/*12*/ true,
61       false,
62       TRUE,
63       FALSE,
64
65       // empty data
66/*16*/ "",
67       '',
68
69       // string data
70/*18*/ "string",
71       'string',
72       $heredoc,
73
74       // object data
75/*21*/ new classA(),
76
77       // undefined data
78/*22*/ @$undefined_var,
79
80       // unset data
81/*23*/ @$unset_var,
82
83       // resource variable
84/*24*/ $fp
85);
86
87// loop through each element of $inputs to check the behavior of count()
88$iterator = 1;
89foreach($inputs as $input) {
90  echo "\n-- Iteration $iterator --\n";
91  var_dump( count($var, $input) );
92  $iterator++;
93};
94
95fclose($fp);
96
97echo "Done";
98?>
99--EXPECTF--
100*** Testing count() : usage variations ***
101
102-- Iteration 1 --
103int(3)
104
105-- Iteration 2 --
106int(5)
107
108-- Iteration 3 --
109int(3)
110
111-- Iteration 4 --
112int(3)
113
114-- Iteration 5 --
115int(3)
116
117-- Iteration 6 --
118int(3)
119
120-- Iteration 7 --
121int(3)
122
123-- Iteration 8 --
124int(3)
125
126-- Iteration 9 --
127int(3)
128
129-- Iteration 10 --
130int(3)
131
132-- Iteration 11 --
133int(3)
134
135-- Iteration 12 --
136int(5)
137
138-- Iteration 13 --
139int(3)
140
141-- Iteration 14 --
142int(5)
143
144-- Iteration 15 --
145int(3)
146
147-- Iteration 16 --
148
149Warning: count() expects parameter 2 to be long, string given in %s on line %d
150NULL
151
152-- Iteration 17 --
153
154Warning: count() expects parameter 2 to be long, string given in %s on line %d
155NULL
156
157-- Iteration 18 --
158
159Warning: count() expects parameter 2 to be long, string given in %s on line %d
160NULL
161
162-- Iteration 19 --
163
164Warning: count() expects parameter 2 to be long, string given in %s on line %d
165NULL
166
167-- Iteration 20 --
168
169Warning: count() expects parameter 2 to be long, string given in %s on line %d
170NULL
171
172-- Iteration 21 --
173
174Warning: count() expects parameter 2 to be long, object given in %s on line %d
175NULL
176
177-- Iteration 22 --
178int(3)
179
180-- Iteration 23 --
181int(3)
182
183-- Iteration 24 --
184
185Warning: count() expects parameter 2 to be long, resource given in %s on line %d
186NULL
187Done