Annotation of embedaddon/php/ext/standard/tests/array/key_variation2.phpt, revision 1.1.1.1
1.1 misho 1: --TEST--
2: Test key() function : usage variations
3: --FILE--
4: <?php
5: /* Prototype : mixed key(array $array_arg)
6: * Description: Return the key of the element currently pointed to by the internal array pointer
7: * Source code: ext/standard/array.c
8: */
9:
10: /*
11: * Pass arrays where keys are different data types as $array_arg to key() to test behaviour
12: */
13:
14: echo "*** Testing key() : usage variations ***\n";
15:
16: //get an unset variable
17: $unset_var = 10;
18: unset ($unset_var);
19:
20: // heredoc string
21: $heredoc = <<<EOT
22: hello world
23: EOT;
24:
25: // unexpected values to be passed as $array_arg
26: $inputs = array(
27:
28: // int data
29: /*1*/ 'int' => array(
30: 0 => 'zero',
31: 1 => 'one',
32: 12345 => 'positive',
33: -2345 => 'negative',
34: ),
35:
36: // float data
37: /*2*/ 'float' => array(
38: 10.5 => 'positive',
39: -10.5 => 'negative',
40: .5 => 'half',
41: ),
42:
43: /*3*/ 'extreme floats' => array(
44: 12.3456789000e6 => 'large',
45: 12.3456789000E-10 => 'small',
46: ),
47:
48: // null data
49: /*4*/ 'null uppercase' => array(
50: NULL => 'null 1',
51: ),
52:
53: /*5*/ 'null lowercase' => array(
54: null => 'null 2',
55: ),
56:
57: // boolean data
58: /*6*/ 'bool lowercase' => array(
59: true => 'lowert',
60: false => 'lowerf',
61: ),
62:
63: /*7*/ 'bool uppercase' => array(
64: TRUE => 'uppert',
65: FALSE => 'upperf',
66: ),
67:
68: // empty data
69: /*8*/ 'empty double quotes' => array(
70: "" => 'emptyd',
71: ),
72:
73: /*9*/ 'empty single quotes' => array(
74: '' => 'emptys',
75: ),
76:
77: // string data
78: /*10*/ 'string' => array(
79: "stringd" => 'stringd',
80: 'strings' => 'strings',
81: $heredoc => 'stringh',
82: ),
83:
84: // undefined data
85: /*11*/ 'undefined' => array(
86: @$undefined_var => 'undefined',
87: ),
88:
89: // unset data
90: /*12*/ 'unset' => array(
91: @$unset_var => 'unset',
92: ),
93: );
94:
95: // loop through each element of $inputs to check the behavior of key()
96: $iterator = 1;
97: foreach($inputs as $key => $input) {
98: echo "\n-- Iteration $iterator : $key data --\n";
99: while (key($input) !== NULL) {
100: var_dump(key($input));
101: next($input);
102: }
103: $iterator++;
104: };
105: ?>
106: ===DONE===
107: --EXPECTF--
108: *** Testing key() : usage variations ***
109:
110: -- Iteration 1 : int data --
111: int(0)
112: int(1)
113: int(12345)
114: int(-2345)
115:
116: -- Iteration 2 : float data --
117: int(10)
118: int(-10)
119: int(0)
120:
121: -- Iteration 3 : extreme floats data --
122: int(12345678)
123: int(0)
124:
125: -- Iteration 4 : null uppercase data --
126: string(0) ""
127:
128: -- Iteration 5 : null lowercase data --
129: string(0) ""
130:
131: -- Iteration 6 : bool lowercase data --
132: int(1)
133: int(0)
134:
135: -- Iteration 7 : bool uppercase data --
136: int(1)
137: int(0)
138:
139: -- Iteration 8 : empty double quotes data --
140: string(0) ""
141:
142: -- Iteration 9 : empty single quotes data --
143: string(0) ""
144:
145: -- Iteration 10 : string data --
146: string(7) "stringd"
147: string(7) "strings"
148: string(11) "hello world"
149:
150: -- Iteration 11 : undefined data --
151: string(0) ""
152:
153: -- Iteration 12 : unset data --
154: string(0) ""
155: ===DONE===
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