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1 <?php |
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2 /** |
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3 * Zend Framework |
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4 * |
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5 * LICENSE |
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6 * |
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7 * This source file is subject to the new BSD license that is bundled |
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8 * with this package in the file LICENSE.txt. |
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9 * It is also available through the world-wide-web at this URL: |
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10 * http://framework.zend.com/license/new-bsd |
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11 * If you did not receive a copy of the license and are unable to |
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12 * obtain it through the world-wide-web, please send an email |
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13 * to license@zend.com so we can send you a copy immediately. |
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14 * |
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15 * @category Zend |
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16 * @package Zend_Validate |
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17 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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18 * @license http://framework.zend.com/license/new-bsd New BSD License |
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19 * @version $Id: Digits.php 22668 2010-07-25 14:50:46Z thomas $ |
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20 */ |
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21 |
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22 /** |
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23 * @see Zend_Validate_Abstract |
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24 */ |
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25 require_once 'Zend/Validate/Abstract.php'; |
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26 |
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27 /** |
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28 * @category Zend |
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29 * @package Zend_Validate |
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30 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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31 * @license http://framework.zend.com/license/new-bsd New BSD License |
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32 */ |
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33 class Zend_Validate_Digits extends Zend_Validate_Abstract |
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34 { |
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35 const NOT_DIGITS = 'notDigits'; |
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36 const STRING_EMPTY = 'digitsStringEmpty'; |
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37 const INVALID = 'digitsInvalid'; |
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38 |
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39 /** |
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40 * Digits filter used for validation |
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41 * |
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42 * @var Zend_Filter_Digits |
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43 */ |
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44 protected static $_filter = null; |
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45 |
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46 /** |
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47 * Validation failure message template definitions |
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48 * |
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49 * @var array |
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50 */ |
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51 protected $_messageTemplates = array( |
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52 self::NOT_DIGITS => "'%value%' must contain only digits", |
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53 self::STRING_EMPTY => "'%value%' is an empty string", |
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54 self::INVALID => "Invalid type given. String, integer or float expected", |
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55 ); |
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56 |
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57 /** |
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58 * Defined by Zend_Validate_Interface |
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59 * |
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60 * Returns true if and only if $value only contains digit characters |
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61 * |
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62 * @param string $value |
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63 * @return boolean |
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64 */ |
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65 public function isValid($value) |
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66 { |
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67 if (!is_string($value) && !is_int($value) && !is_float($value)) { |
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68 $this->_error(self::INVALID); |
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69 return false; |
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70 } |
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71 |
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72 $this->_setValue((string) $value); |
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73 |
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74 if ('' === $this->_value) { |
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75 $this->_error(self::STRING_EMPTY); |
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76 return false; |
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77 } |
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78 |
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79 if (null === self::$_filter) { |
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80 require_once 'Zend/Filter/Digits.php'; |
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81 self::$_filter = new Zend_Filter_Digits(); |
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82 } |
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83 |
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84 if ($this->_value !== self::$_filter->filter($this->_value)) { |
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85 $this->_error(self::NOT_DIGITS); |
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86 return false; |
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87 } |
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88 |
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89 return true; |
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90 } |
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91 } |