Class **Phalcon\\Validation\\Validator\\Alnum** =============================================== *extends* abstract class :doc:`Phalcon\\Validation\\Validator ` *implements* :doc:`Phalcon\\Validation\\ValidatorInterface ` .. role:: raw-html(raw) :format: html :raw-html:`Source on GitHub` Check for alphanumeric character(s) .. code-block:: php add('username', new AlnumValidator(array( 'message' => ':field must contain only alphanumeric characters' ))); Methods ------- public **validate** (:doc:`Phalcon\\Validation ` $validation, *unknown* $field) Executes the validation public **__construct** ([*unknown* $options]) inherited from Phalcon\\Validation\\Validator Phalcon\\Validation\\Validator constructor public **isSetOption** (*unknown* $key) inherited from Phalcon\\Validation\\Validator Checks if an option is defined public **hasOption** (*unknown* $key) inherited from Phalcon\\Validation\\Validator Checks if an option is defined public **getOption** (*unknown* $key, [*unknown* $defaultValue]) inherited from Phalcon\\Validation\\Validator Returns an option in the validator's options Returns null if the option hasn't set public **setOption** (*unknown* $key, *unknown* $value) inherited from Phalcon\\Validation\\Validator Sets an option in the validator