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Table of Contents

  • Supported Constraints
    • Basic Constraints
    • String Constraints
    • Number Constraints
    • Date Constraints
    • Collection Constraints
    • File Constraints
    • Financial Constraints
    • Other Constraints

Validation Constraints Reference

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Read the updated version of this page for Symfony 6.2 (the current stable version).

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.

  • NotBlank
  • Blank
  • NotNull
  • Null
  • True
  • False
  • Type

String Constraints

  • Email
  • MinLength
  • MaxLength
  • Length
  • Url
  • Regex
  • Ip

Number Constraints

  • Max
  • Min
  • Range

Date Constraints

  • Date
  • DateTime
  • Time

Collection Constraints

  • Choice
  • Collection
  • Count
  • UniqueEntity
  • Language
  • Locale
  • Country

File Constraints

  • File
  • Image

Financial Constraints

  • CardScheme
  • Luhn

Other Constraints

  • Callback
  • All
  • UserPassword
  • Valid
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