# Class **Phalcon\Validation\Validator\Regex**[](# "永久链接至标题") *extends* abstract class [*Phalcon\Validation\Validator*](#) *implements*[*Phalcon\Validation\ValidatorInterface*](#) Allows validate if the value of a field matches a regular expression ~~~ <?php use Phalcon\Validation\Validator\Regex as RegexValidator; $validator->add('created_at', new RegexValidator(array( 'pattern' => '/^[0-9]{4}[-\/](0[1-9]|1[12])[-\/](0[1-9]|[12][0-9]|3[01])$/', 'message' => 'The creation date is invalid' ))); ~~~ ### Methods[](# "永久链接至标题") public **validate** (*unknown* $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 | - [索引](# "总目录") - [下一页](# "Class Phalcon\Validation\Validator\StringLength") | - [上一页](# "Class Phalcon\Validation\Validator\PresenceOf") | - [API Indice](#) »