Class **Phalcon\\Validation\\Validator\\PresenceOf** ==================================================== *extends* abstract class :doc:`Phalcon\\Validation\\Validator ` *implements* :doc:`Phalcon\\Validation\\ValidatorInterface ` Validates that a value is not null or empty string .. code-block:: php add('name', new PresenceOf(array( 'message' => 'The name is required' ))); Methods ------- public *boolean* **validate** (:doc:`Phalcon\\Validation ` $validator, *string* $attribute) Executes the validation public **__construct** ([*array* $options]) inherited from Phalcon\\Validation\\Validator Phalcon\\Validation\\Validator constructor public *mixed* **isSetOption** (*string* $key) inherited from Phalcon\\Validation\\Validator Checks if an option is defined public *mixed* **getOption** (*string* $key) inherited from Phalcon\\Validation\\Validator Returns an option in the validator's options Returns null if the option hasn't been set public **setOption** (*string* $key, *mixed* $value) inherited from Phalcon\\Validation\\Validator Sets an option in the validator