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# Class **Phalcon\Mvc\Model\Validator\Numericality**[](# "永久链接至标题") *extends* abstract class [*Phalcon\Mvc\Model\Validator*](#) *implements*[*Phalcon\Mvc\Model\ValidatorInterface*](#) Allows to validate if a field has a valid numeric format ~~~ <?php use Phalcon\Mvc\Model\Validator\Numericality as NumericalityValidator; class Products extends \Phalcon\Mvc\Model { public function validation() { $this->validate(new NumericalityValidator(array( "field" => 'price' ))); if ($this->validationHasFailed() == true) { return false; } } } ~~~ ### Methods[](# "永久链接至标题") public **validate** (*unknown* $record) Executes the validator public **__construct** (*unknown* $options) inherited from Phalcon\Mvc\Model\Validator Phalcon\Mvc\Model\Validator constructor protected **appendMessage** (*string* $message, [*string|array* $field], [*string* $type]) inherited from Phalcon\Mvc\Model\Validator Appends a message to the validator public **getMessages** () inherited from Phalcon\Mvc\Model\Validator Returns messages generated by the validator public *array***getOptions** () inherited from Phalcon\Mvc\Model\Validator Returns all the options from the validator public **getOption** (*unknown* $option, [*unknown* $defaultValue]) inherited from Phalcon\Mvc\Model\Validator Returns an option public **isSetOption** (*unknown* $option) inherited from Phalcon\Mvc\Model\Validator Check whether a option has been defined in the validator options | - [索引](# "总目录") - [下一页](# "Class Phalcon\Mvc\Model\Validator\PresenceOf") | - [上一页](# "Class Phalcon\Mvc\Model\Validator\Ip") | - [API Indice](#) »