## API Documentation

# Validate/Interface.php

Zend Framework

LICENSE

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category
  Zend
copyright
  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
license
  New BSD License
package
  Zend_Validate
version
  $Id: Interface.php 23775 2011-03-01 17:25:24Z ralph $

## \Zend_Validate_Interface
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category
  Zend
copyright
  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
license
  New BSD License
package
  Zend_Validate

### Methods

`getMessages( ) : array`

Returns an array of messages that explain why the most recent isValid() call returned false. The array keys are validation failure message identifiers, and the array values are the corresponding human-readable message strings.

If isValid() was never called or if the most recent isValid() call returned true, then this method returns an empty array.

Returns

Type | Description
--- | ---
array |

`isValid( mixed $value ) : boolean`

Returns true if and only if $value meets the validation requirements

If $value fails validation, then this method returns false, and getMessages() will return an array of messages that explain why the validation failed.

Parameters

Name | Type | Description
--- | --- | ---
$value | mixed |

Returns

Type | Description
--- | ---
boolean |

Throws

Exception | Description
--- | ---
\Zend_Validate_Exception | If validation of $value is impossible

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