1--TEST--
2Test count() function : usage variations - Pass different data types as $var 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 * aPass different data types as $var argument to count() to test behaviour
12 */
13
14echo "*** Testing count() : usage variations ***\n";
15
16//get an unset variable
17$unset_var = 10;
18unset ($unset_var);
19
20// get a class
21class classA
22{
23  public function __toString() {
24    return "Class A object";
25  }
26}
27
28// heredoc string
29$heredoc = <<<EOT
30hello world
31EOT;
32
33// get a resource variable
34$fp = fopen(__FILE__, "r");
35
36// unexpected values to be passed to $var argument
37$inputs = array(
38
39       // int data
40/*1*/  0,
41       1,
42       12345,
43       -2345,
44
45       // float data
46/*5*/  10.5,
47       -10.5,
48       12.3456789000e10,
49       12.3456789000E-10,
50       .5,
51
52       // null data
53/*10*/ NULL,
54       null,
55
56       // boolean data
57/*12*/ true,
58       false,
59       TRUE,
60       FALSE,
61
62       // empty data
63/*16*/ "",
64       '',
65
66       // string data
67/*18*/ "string",
68       'string',
69       $heredoc,
70
71       // object data
72/*21*/ new classA(),
73
74       // undefined data
75/*22*/ @$undefined_var,
76
77       // unset data
78/*23*/ @$unset_var,
79
80       // resource variable
81/*24*/ $fp
82);
83
84// loop through each element of $inputs to check the behavior of count()
85$iterator = 1;
86foreach($inputs as $input) {
87  echo "\n-- Iteration $iterator --\n";
88  var_dump( count($input) );
89  $iterator++;
90};
91
92fclose($fp);
93
94echo "Done";
95?>
96--EXPECTF--
97*** Testing count() : usage variations ***
98
99-- Iteration 1 --
100int(1)
101
102-- Iteration 2 --
103int(1)
104
105-- Iteration 3 --
106int(1)
107
108-- Iteration 4 --
109int(1)
110
111-- Iteration 5 --
112int(1)
113
114-- Iteration 6 --
115int(1)
116
117-- Iteration 7 --
118int(1)
119
120-- Iteration 8 --
121int(1)
122
123-- Iteration 9 --
124int(1)
125
126-- Iteration 10 --
127int(0)
128
129-- Iteration 11 --
130int(0)
131
132-- Iteration 12 --
133int(1)
134
135-- Iteration 13 --
136int(1)
137
138-- Iteration 14 --
139int(1)
140
141-- Iteration 15 --
142int(1)
143
144-- Iteration 16 --
145int(1)
146
147-- Iteration 17 --
148int(1)
149
150-- Iteration 18 --
151int(1)
152
153-- Iteration 19 --
154int(1)
155
156-- Iteration 20 --
157int(1)
158
159-- Iteration 21 --
160int(1)
161
162-- Iteration 22 --
163int(0)
164
165-- Iteration 23 --
166int(0)
167
168-- Iteration 24 --
169int(1)
170Done