1: <?php
 2: /**
 3:  * Wei Framework
 4:  *
 5:  * @copyright   Copyright (c) 2008-2015 Twin Huang
 6:  * @license     http://opensource.org/licenses/mit-license.php MIT License
 7:  */
 8: 
 9: namespace Wei\Validator;
10: 
11: /**
12:  * Check if the input could be divisible by specified divisor
13:  *
14:  * @author      Twin Huang <twinhuang@qq.com>
15:  */
16: class DivisibleBy extends BaseValidator
17: {
18:     protected $notDivisibleMessage = '%name% must be divisible by %divisor%';
19: 
20:     protected $negativeMessage = '%name% must not be divisible by %divisor%';
21: 
22:     /**
23:      * Set divisor to 1 to avoid "division by zero" error
24:      *
25:      * @var int|float
26:      */
27:     protected $divisor = 1;
28: 
29:     /**
30:      * {@inheritdoc}
31:      */
32:     public function __invoke($input, $divisor = null)
33:     {
34:         $divisor && $this->storeOption('divisor', $divisor);
35: 
36:         return $this->isValid($input);
37:     }
38: 
39:     /**
40:      * {@inheritdoc}
41:      */
42:     protected function doValidate($input)
43:     {
44:         if (!$this->isString($input)) {
45:             $this->addError('notDivisible');
46:             return false;
47:         }
48: 
49:         if (is_float($this->divisor)) {
50:             $result = fmod($input, $this->divisor);
51:         } else {
52:             $result = $input % $this->divisor;
53:         }
54: 
55:         if (0 != $result) {
56:             $this->addError('notDivisible');
57:             return false;
58:         }
59:         return true;
60:     }
61: }
62: