1: <?php
 2: 
 3: /**
 4:  * Jyxo PHP Library
 5:  *
 6:  * LICENSE
 7:  *
 8:  * This source file is subject to the new BSD license that is bundled
 9:  * with this package in the file license.txt.
10:  * It is also available through the world-wide-web at this URL:
11:  * https://github.com/jyxo/php/blob/master/license.txt
12:  */
13: 
14: namespace Jyxo\Input\Validator;
15: 
16: /**
17:  * Validates string length to be lower than the given length.
18:  *
19:  * @category Jyxo
20:  * @package Jyxo\Input
21:  * @subpackage Validator
22:  * @copyright Copyright (c) 2005-2011 Jyxo, s.r.o.
23:  * @license https://github.com/jyxo/php/blob/master/license.txt
24:  * @author Jan Pěček
25:  */
26: class StringLengthLessThan extends \Jyxo\Input\Validator\AbstractValidator
27: {
28:     /**
29:      * Maximal string length.
30:      *
31:      * @var integer
32:      */
33:     protected $max;
34: 
35:     /**
36:      * Constructor.
37:      *
38:      * @param integer $max Maximal string length (value length must be lower)
39:      */
40:     public function __construct($max)
41:     {
42:         $this->setMax($max);
43:     }
44: 
45:     /**
46:      * Sets the maximal string length.
47:      *
48:      * @param integer $max Maximal string length
49:      * @return \Jyxo\Input\Validator\StringLengthLessThan
50:      * @throws \InvalidArgumentException If the maximal length is negative or zero
51:      */
52:     public function setMax($max)
53:     {
54:         $max = (int) $max;
55: 
56:         if ($max <= 0) {
57:             throw new \InvalidArgumentException('Length of string must be greater than zero.');
58:         }
59: 
60:         $this->max = $max;
61: 
62:         return $this;
63:     }
64: 
65:     /**
66:      * Returns the maximal string length.
67:      *
68:      * @return integer
69:      */
70:     public function getMax()
71:     {
72:         return $this->max;
73:     }
74: 
75:     /**
76:      * Validates a value.
77:      *
78:      * @param mixed $value Input value
79:      * @return boolean
80:      */
81:     public function isValid($value)
82:     {
83:         return mb_strlen((string) $value, 'utf-8') < $this->getMax();
84:     }
85: }
86: