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 --
100
101Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
102int(1)
103
104-- Iteration 2 --
105
106Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
107int(1)
108
109-- Iteration 3 --
110
111Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
112int(1)
113
114-- Iteration 4 --
115
116Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
117int(1)
118
119-- Iteration 5 --
120
121Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
122int(1)
123
124-- Iteration 6 --
125
126Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
127int(1)
128
129-- Iteration 7 --
130
131Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
132int(1)
133
134-- Iteration 8 --
135
136Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
137int(1)
138
139-- Iteration 9 --
140
141Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
142int(1)
143
144-- Iteration 10 --
145
146Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
147int(0)
148
149-- Iteration 11 --
150
151Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
152int(0)
153
154-- Iteration 12 --
155
156Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
157int(1)
158
159-- Iteration 13 --
160
161Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
162int(1)
163
164-- Iteration 14 --
165
166Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
167int(1)
168
169-- Iteration 15 --
170
171Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
172int(1)
173
174-- Iteration 16 --
175
176Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
177int(1)
178
179-- Iteration 17 --
180
181Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
182int(1)
183
184-- Iteration 18 --
185
186Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
187int(1)
188
189-- Iteration 19 --
190
191Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
192int(1)
193
194-- Iteration 20 --
195
196Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
197int(1)
198
199-- Iteration 21 --
200
201Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
202int(1)
203
204-- Iteration 22 --
205
206Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
207int(0)
208
209-- Iteration 23 --
210
211Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
212int(0)
213
214-- Iteration 24 --
215
216Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d
217int(1)
218Done
219