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1.1 misho 1: --TEST--
2: Test 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:
14: echo "*** 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: $unset_var = 10;
21: unset ($unset_var);
22:
23: // get a class
24: class classA
25: {
26: public function __toString() {
27: return "Class A object";
28: }
29: }
30:
31: // heredoc string
32: $heredoc = <<<EOT
33: hello world
34: EOT;
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: $iterator = 1;
89: foreach($inputs as $input) {
90: echo "\n-- Iteration $iterator --\n";
91: var_dump( count($var, $input) );
92: $iterator++;
93: };
94:
95: fclose($fp);
96:
97: echo "Done";
98: ?>
99: --EXPECTF--
100: *** Testing count() : usage variations ***
101:
102: -- Iteration 1 --
103: int(3)
104:
105: -- Iteration 2 --
106: int(5)
107:
108: -- Iteration 3 --
109: int(3)
110:
111: -- Iteration 4 --
112: int(3)
113:
114: -- Iteration 5 --
115: int(3)
116:
117: -- Iteration 6 --
118: int(3)
119:
120: -- Iteration 7 --
121: int(3)
122:
123: -- Iteration 8 --
124: int(3)
125:
126: -- Iteration 9 --
127: int(3)
128:
129: -- Iteration 10 --
130: int(3)
131:
132: -- Iteration 11 --
133: int(3)
134:
135: -- Iteration 12 --
136: int(5)
137:
138: -- Iteration 13 --
139: int(3)
140:
141: -- Iteration 14 --
142: int(5)
143:
144: -- Iteration 15 --
145: int(3)
146:
147: -- Iteration 16 --
148:
149: Warning: count() expects parameter 2 to be long, string given in %s on line %d
150: NULL
151:
152: -- Iteration 17 --
153:
154: Warning: count() expects parameter 2 to be long, string given in %s on line %d
155: NULL
156:
157: -- Iteration 18 --
158:
159: Warning: count() expects parameter 2 to be long, string given in %s on line %d
160: NULL
161:
162: -- Iteration 19 --
163:
164: Warning: count() expects parameter 2 to be long, string given in %s on line %d
165: NULL
166:
167: -- Iteration 20 --
168:
169: Warning: count() expects parameter 2 to be long, string given in %s on line %d
170: NULL
171:
172: -- Iteration 21 --
173:
174: Warning: count() expects parameter 2 to be long, object given in %s on line %d
175: NULL
176:
177: -- Iteration 22 --
178: int(3)
179:
180: -- Iteration 23 --
181: int(3)
182:
183: -- Iteration 24 --
184:
185: Warning: count() expects parameter 2 to be long, resource given in %s on line %d
186: NULL
187: Done