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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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* @package Zend_Validate
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* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Alnum.php 23775 2011-03-01 17:25:24Z ralph $
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* @see Zend_Validate_Abstract
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require_once 'Zend/Validate/Abstract.php';
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* @package Zend_Validate
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* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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class Zend_Validate_Alnum extends Zend_Validate_Abstract
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const INVALID = 'alnumInvalid';
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const NOT_ALNUM = 'notAlnum';
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const STRING_EMPTY = 'alnumStringEmpty';
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* Whether to allow white space characters; off by default
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public $allowWhiteSpace;
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* Alphanumeric filter used for validation
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* @var Zend_Filter_Alnum
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protected static $_filter = null;
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* Validation failure message template definitions
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protected $_messageTemplates = array(
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self::INVALID => "Invalid type given. String, integer or float expected",
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self::NOT_ALNUM => "'%value%' contains characters which are non alphabetic and no digits",
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self::STRING_EMPTY => "'%value%' is an empty string",
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* Sets default option values for this instance
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* @param boolean|Zend_Config $allowWhiteSpace
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public function __construct($allowWhiteSpace = false)
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if ($allowWhiteSpace instanceof Zend_Config) {
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$allowWhiteSpace = $allowWhiteSpace->toArray();
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if (is_array($allowWhiteSpace)) {
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if (array_key_exists('allowWhiteSpace', $allowWhiteSpace)) {
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$allowWhiteSpace = $allowWhiteSpace['allowWhiteSpace'];
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$allowWhiteSpace = false;
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$this->allowWhiteSpace = (boolean) $allowWhiteSpace;
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* Returns the allowWhiteSpace option
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public function getAllowWhiteSpace()
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return $this->allowWhiteSpace;
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* Sets the allowWhiteSpace option
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* @param boolean $allowWhiteSpace
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* @return Zend_Filter_Alnum Provides a fluent interface
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public function setAllowWhiteSpace($allowWhiteSpace)
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$this->allowWhiteSpace = (boolean) $allowWhiteSpace;
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* Defined by Zend_Validate_Interface
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* Returns true if and only if $value contains only alphabetic and digit characters
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* @param string $value
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public function isValid($value)
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if (!is_string($value) && !is_int($value) && !is_float($value)) {
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$this->_error(self::INVALID);
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$this->_setValue($value);
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$this->_error(self::STRING_EMPTY);
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if (null === self::$_filter) {
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* @see Zend_Filter_Alnum
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require_once 'Zend/Filter/Alnum.php';
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self::$_filter = new Zend_Filter_Alnum();
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self::$_filter->allowWhiteSpace = $this->allowWhiteSpace;
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if ($value != self::$_filter->filter($value)) {
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$this->_error(self::NOT_ALNUM);