1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
/** |
4
|
|
|
* Copyright (c) 2016-present Ganbaro Digital Ltd |
5
|
|
|
* All rights reserved. |
6
|
|
|
* |
7
|
|
|
* Redistribution and use in source and binary forms, with or without |
8
|
|
|
* modification, are permitted provided that the following conditions |
9
|
|
|
* are met: |
10
|
|
|
* |
11
|
|
|
* * Redistributions of source code must retain the above copyright |
12
|
|
|
* notice, this list of conditions and the following disclaimer. |
13
|
|
|
* |
14
|
|
|
* * Redistributions in binary form must reproduce the above copyright |
15
|
|
|
* notice, this list of conditions and the following disclaimer in |
16
|
|
|
* the documentation and/or other materials provided with the |
17
|
|
|
* distribution. |
18
|
|
|
* |
19
|
|
|
* * Neither the names of the copyright holders nor the names of his |
20
|
|
|
* contributors may be used to endorse or promote products derived |
21
|
|
|
* from this software without specific prior written permission. |
22
|
|
|
* |
23
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
24
|
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
25
|
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
26
|
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
27
|
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
28
|
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
29
|
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
30
|
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
31
|
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
32
|
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
33
|
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
34
|
|
|
* POSSIBILITY OF SUCH DAMAGE. |
35
|
|
|
* |
36
|
|
|
* @category Libraries |
37
|
|
|
* @package MissingBits/TypeChecks |
38
|
|
|
* @author Stuart Herbert <[email protected]> |
39
|
|
|
* @copyright 2016-present Ganbaro Digital Ltd www.ganbarodigital.com |
40
|
|
|
* @license http://www.opensource.org/licenses/bsd-license.php BSD License |
41
|
|
|
* @link http://ganbarodigital.github.io/php-the-missing-bits |
42
|
|
|
*/ |
43
|
|
|
|
44
|
|
|
namespace GanbaroDigital\MissingBits\TypeChecks; |
45
|
|
|
|
46
|
|
|
use GanbaroDigital\MissingBits\Checks\Check; |
47
|
|
|
|
48
|
|
|
/** |
49
|
|
|
* do we have something that is a boolean? |
50
|
|
|
*/ |
51
|
|
|
class IsBoolean implements Check |
52
|
|
|
{ |
53
|
|
|
/** |
54
|
|
|
* creates a new Check, ready to use |
55
|
|
|
* |
56
|
|
|
* we do not support any customisations |
57
|
|
|
* |
58
|
|
|
* @return Check |
59
|
|
|
*/ |
60
|
|
|
public static function using() |
61
|
|
|
{ |
62
|
|
|
return new static; |
63
|
|
|
} |
64
|
|
|
|
65
|
|
|
/** |
66
|
|
|
* do we have something that is a boolean? |
67
|
|
|
* |
68
|
|
|
* @param mixed $fieldOrVar |
69
|
|
|
* the item to be checked |
70
|
|
|
* @return bool |
71
|
|
|
* TRUE if the item is a boolean |
72
|
|
|
* FALSE otherwise |
73
|
|
|
*/ |
74
|
|
|
public static function check($fieldOrVar) |
75
|
|
|
{ |
76
|
|
|
// general cases |
77
|
|
|
if (is_bool($fieldOrVar)) { |
78
|
|
|
return true; |
79
|
|
|
} |
80
|
|
|
|
81
|
|
|
// if we get here, we have run out of ideas |
82
|
|
|
return false; |
83
|
|
|
} |
84
|
|
|
|
85
|
|
|
/** |
86
|
|
|
* do we have something that is a boolean? |
87
|
|
|
* |
88
|
|
|
* @param mixed $fieldOrVar |
89
|
|
|
* the item to be checked |
90
|
|
|
* @return bool |
91
|
|
|
* TRUE if the item is a boolean |
92
|
|
|
* FALSE otherwise |
93
|
|
|
*/ |
94
|
|
|
public function inspect($fieldOrVar) |
95
|
|
|
{ |
96
|
|
|
return static::check($fieldOrVar); |
97
|
|
|
} |
98
|
|
|
} |
99
|
|
|
|