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Front cover of the Symfony 5: The Fast Track book

Symfony 5: The Fast Track

A new book to learn about developing modern Symfony 5 applications.

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WARNING: You are browsing the documentation for Symfony 2.2 which is not maintained anymore. Consider upgrading your projects to Symfony 5.0.

Validation Constraints Reference

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Validation Constraints Reference

The Validator is designed to validate objects against constraints. In real life, a constraint could be: "The cake must not be burned". In Symfony2, constraints are similar: They are assertions that a condition is true.

Supported Constraints

The following constraints are natively available in Symfony2:

Basic Constraints

These are the basic constraints: use them to assert very basic things about the value of properties or the return value of methods on your object.

Number Constraints

Date Constraints

File Constraints

Financial Constraints

Other Constraints

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