Adds a validator to the end of the chain
If $breakChainOnFailure is true, then if the validator fails, the next validator in the chain, if one exists, will not be executed.
Defined by Zend_Validate_Interface
Returns array of validation failure messages
Returns true if and only if $value passes all validations in the chain
Validators are run in the order in which they were added to the chain (FIFO).
Documentation generated on Sat, 05 May 2007 11:58:42 -0700 by phpDocumentor 1.3.2