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Table of Contents

  • Supported Constraints
    • Basic Constraints
    • String Constraints
    • Comparison Constraints
    • Number Constraints
    • Date Constraints
    • Choice Constraints
    • File Constraints
    • Financial and other Number Constraints
    • Other Constraints

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.

  • NotBlank
  • Blank
  • NotNull
  • IsNull
  • IsTrue
  • IsFalse
  • Type

String Constraints

  • Email
  • Length
  • Url
  • Regex
  • Ip
  • Json
  • Uuid
  • UserPassword
  • NotCompromisedPassword

Comparison Constraints

  • EqualTo
  • NotEqualTo
  • IdenticalTo
  • NotIdenticalTo
  • LessThan
  • LessThanOrEqual
  • GreaterThan
  • GreaterThanOrEqual
  • Range
  • DivisibleBy
  • Unique

Number Constraints

  • Positive
  • PositiveOrZero
  • Negative
  • NegativeOrZero

Date Constraints

  • Date
  • DateTime
  • Time
  • Timezone

Choice Constraints

  • Choice
  • Language
  • Locale
  • Country

File Constraints

  • File
  • Image

Financial and other Number Constraints

  • Bic
  • CardScheme
  • Currency
  • Luhn
  • Iban
  • Isbn
  • Issn

Other Constraints

  • Callback
  • Expression
  • All
  • Valid
  • Traverse
  • Collection
  • Count
  • UniqueEntity
This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.
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