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   1  <?php
   2  /**
   3   * Zend Framework
   4   *
   5   * LICENSE
   6   *
   7   * This source file is subject to the new BSD license that is bundled
   8   * with this package in the file LICENSE.txt.
   9   * It is also available through the world-wide-web at this URL:
  10   * http://framework.zend.com/license/new-bsd
  11   * If you did not receive a copy of the license and are unable to
  12   * obtain it through the world-wide-web, please send an email
  13   * to [email protected] so we can send you a copy immediately.
  14   *
  15   * @category   Zend
  16   * @package    Zend_Validate
  17   * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
  18   * @license    http://framework.zend.com/license/new-bsd     New BSD License
  19   * @version    $Id$
  20   */
  21  
  22  /**
  23   * @category   Zend
  24   * @package    Zend_Validate
  25   * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
  26   * @license    http://framework.zend.com/license/new-bsd     New BSD License
  27   */
  28  interface Zend_Validate_Interface
  29  {
  30      /**
  31       * Returns true if and only if $value meets the validation requirements
  32       *
  33       * If $value fails validation, then this method returns false, and
  34       * getMessages() will return an array of messages that explain why the
  35       * validation failed.
  36       *
  37       * @param  mixed $value
  38       * @return boolean
  39       * @throws Zend_Valid_Exception If validation of $value is impossible
  40       */
  41      public function isValid($value);
  42  
  43      /**
  44       * Returns an array of messages that explain why the most recent isValid()
  45       * call returned false. The array keys are validation failure message identifiers,
  46       * and the array values are the corresponding human-readable message strings.
  47       *
  48       * If isValid() was never called or if the most recent isValid() call
  49       * returned true, then this method returns an empty array.
  50       *
  51       * @return array
  52       */
  53      public function getMessages();
  54  }