Explain the concept of Zend_Validator_Identical.

Explain the concept of Zend_Validator_Identical.

Answer: `Zend_Validator_Identical` is a component of the Zend Framework that checks if two values are identical. It’s commonly used in form validation to ensure that fields, such as password confirmation fields, contain the same value. The validator can take a reference value or another form element to compare against, and it returns a validation result indicating whether the values match or not. This helps ensure data consistency and integrity in user input.

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