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 Symfony, constraints are similar: They are assertions that a condition is true.

Supported Constraints

The following constraints are natively available in Symfony:

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.

String Constraints

Comparison Constraints

Number Constraints

Date Constraints

Choice Constraints

File Constraints

Financial and other Number Constraints

Other Constraints

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