1 | <?php |
---|
2 | /** |
---|
3 | * base include file for SimpleTest |
---|
4 | * @package SimpleTest |
---|
5 | * @version $Id: compatibility.php 1723 2008-04-08 00:34:10Z lastcraft $ |
---|
6 | */ |
---|
7 | |
---|
8 | /** |
---|
9 | * Static methods for compatibility between different |
---|
10 | * PHP versions. |
---|
11 | * @package SimpleTest |
---|
12 | */ |
---|
13 | class SimpleTestCompatibility { |
---|
14 | |
---|
15 | /** |
---|
16 | * Creates a copy whether in PHP5 or PHP4. |
---|
17 | * @param object $object Thing to copy. |
---|
18 | * @return object A copy. |
---|
19 | * @access public |
---|
20 | * @static |
---|
21 | */ |
---|
22 | function copy($object) { |
---|
23 | if (version_compare(phpversion(), '5') >= 0) { |
---|
24 | eval('$copy = clone $object;'); |
---|
25 | return $copy; |
---|
26 | } |
---|
27 | return $object; |
---|
28 | } |
---|
29 | |
---|
30 | /** |
---|
31 | * Identity test. Drops back to equality + types for PHP5 |
---|
32 | * objects as the === operator counts as the |
---|
33 | * stronger reference constraint. |
---|
34 | * @param mixed $first Test subject. |
---|
35 | * @param mixed $second Comparison object. |
---|
36 | * @return boolean True if identical. |
---|
37 | * @access public |
---|
38 | * @static |
---|
39 | */ |
---|
40 | function isIdentical($first, $second) { |
---|
41 | if (version_compare(phpversion(), '5') >= 0) { |
---|
42 | return SimpleTestCompatibility::_isIdenticalType($first, $second); |
---|
43 | } |
---|
44 | if ($first != $second) { |
---|
45 | return false; |
---|
46 | } |
---|
47 | return ($first === $second); |
---|
48 | } |
---|
49 | |
---|
50 | /** |
---|
51 | * Recursive type test. |
---|
52 | * @param mixed $first Test subject. |
---|
53 | * @param mixed $second Comparison object. |
---|
54 | * @return boolean True if same type. |
---|
55 | * @access private |
---|
56 | * @static |
---|
57 | */ |
---|
58 | function _isIdenticalType($first, $second) { |
---|
59 | if (gettype($first) != gettype($second)) { |
---|
60 | return false; |
---|
61 | } |
---|
62 | if (is_object($first) && is_object($second)) { |
---|
63 | if (get_class($first) != get_class($second)) { |
---|
64 | return false; |
---|
65 | } |
---|
66 | return SimpleTestCompatibility::_isArrayOfIdenticalTypes( |
---|
67 | get_object_vars($first), |
---|
68 | get_object_vars($second)); |
---|
69 | } |
---|
70 | if (is_array($first) && is_array($second)) { |
---|
71 | return SimpleTestCompatibility::_isArrayOfIdenticalTypes($first, $second); |
---|
72 | } |
---|
73 | if ($first !== $second) { |
---|
74 | return false; |
---|
75 | } |
---|
76 | return true; |
---|
77 | } |
---|
78 | |
---|
79 | /** |
---|
80 | * Recursive type test for each element of an array. |
---|
81 | * @param mixed $first Test subject. |
---|
82 | * @param mixed $second Comparison object. |
---|
83 | * @return boolean True if identical. |
---|
84 | * @access private |
---|
85 | * @static |
---|
86 | */ |
---|
87 | function _isArrayOfIdenticalTypes($first, $second) { |
---|
88 | if (array_keys($first) != array_keys($second)) { |
---|
89 | return false; |
---|
90 | } |
---|
91 | foreach (array_keys($first) as $key) { |
---|
92 | $is_identical = SimpleTestCompatibility::_isIdenticalType( |
---|
93 | $first[$key], |
---|
94 | $second[$key]); |
---|
95 | if (! $is_identical) { |
---|
96 | return false; |
---|
97 | } |
---|
98 | } |
---|
99 | return true; |
---|
100 | } |
---|
101 | |
---|
102 | /** |
---|
103 | * Test for two variables being aliases. |
---|
104 | * @param mixed $first Test subject. |
---|
105 | * @param mixed $second Comparison object. |
---|
106 | * @return boolean True if same. |
---|
107 | * @access public |
---|
108 | * @static |
---|
109 | */ |
---|
110 | function isReference(&$first, &$second) { |
---|
111 | if (version_compare(phpversion(), '5', '>=') && is_object($first)) { |
---|
112 | return ($first === $second); |
---|
113 | } |
---|
114 | if (is_object($first) && is_object($second)) { |
---|
115 | $id = uniqid("test"); |
---|
116 | $first->$id = true; |
---|
117 | $is_ref = isset($second->$id); |
---|
118 | unset($first->$id); |
---|
119 | return $is_ref; |
---|
120 | } |
---|
121 | $temp = $first; |
---|
122 | $first = uniqid("test"); |
---|
123 | $is_ref = ($first === $second); |
---|
124 | $first = $temp; |
---|
125 | return $is_ref; |
---|
126 | } |
---|
127 | |
---|
128 | /** |
---|
129 | * Test to see if an object is a member of a |
---|
130 | * class hiearchy. |
---|
131 | * @param object $object Object to test. |
---|
132 | * @param string $class Root name of hiearchy. |
---|
133 | * @return boolean True if class in hiearchy. |
---|
134 | * @access public |
---|
135 | * @static |
---|
136 | */ |
---|
137 | function isA($object, $class) { |
---|
138 | if (version_compare(phpversion(), '5') >= 0) { |
---|
139 | if (! class_exists($class, false)) { |
---|
140 | if (function_exists('interface_exists')) { |
---|
141 | if (! interface_exists($class, false)) { |
---|
142 | return false; |
---|
143 | } |
---|
144 | } |
---|
145 | } |
---|
146 | eval("\$is_a = \$object instanceof $class;"); |
---|
147 | return $is_a; |
---|
148 | } |
---|
149 | if (function_exists('is_a')) { |
---|
150 | return is_a($object, $class); |
---|
151 | } |
---|
152 | return ((strtolower($class) == get_class($object)) |
---|
153 | or (is_subclass_of($object, $class))); |
---|
154 | } |
---|
155 | |
---|
156 | /** |
---|
157 | * Sets a socket timeout for each chunk. |
---|
158 | * @param resource $handle Socket handle. |
---|
159 | * @param integer $timeout Limit in seconds. |
---|
160 | * @access public |
---|
161 | * @static |
---|
162 | */ |
---|
163 | function setTimeout($handle, $timeout) { |
---|
164 | if (function_exists('stream_set_timeout')) { |
---|
165 | stream_set_timeout($handle, $timeout, 0); |
---|
166 | } elseif (function_exists('socket_set_timeout')) { |
---|
167 | socket_set_timeout($handle, $timeout, 0); |
---|
168 | } elseif (function_exists('set_socket_timeout')) { |
---|
169 | set_socket_timeout($handle, $timeout, 0); |
---|
170 | } |
---|
171 | } |
---|
172 | } |
---|
173 | ?> |
---|