Validate values submitted with Web forms

Validate Brazilian document numbers and formats

Check submitted form values without Javascript

Class that checks german passport IDDs

Validate credit card numbers

Perform several types for form data validation

Validate values submitted via Web page forms

Validate ISBN-10, ISBN-13 and convert between them

Validate data by type, constraint or dependency

Data validation class

Validate form inputs according to several rules

Perform several types of text validation

Perform common types of form field validation

Validate text values according to many rules

Validate values against several types of rules

Validation of data submitted via Web forms

Validate user submitted data

Validate identifier of entities in Venezuela