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  4. Constraints
  5. Type

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Read the updated version of this page for Symfony 5.3 (the current stable version).

Type

2.1 version
Maintained
4.4 5.2 5.3 current 5.4 dev 6.0
Unmaintained
2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 3.0 3.1 3.2 3.3 3.4 4.0 4.1 4.2 4.3 5.0 5.1

Type

Validates that a value is of a specific data type. For example, if a variable should be an array, you can use this constraint with the array type option to validate this.

Applies to property or method
Options
Class Symfony\Component\Validator\Constraints\Type
Validator Symfony\Component\Validator\Constraints\TypeValidator

Basic Usage

  • YAML
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    # src/BlogBundle/Resources/config/validation.yml
Acme\BlogBundle\Entity\Author:
    properties:
        age:
            - Type:
                type: integer
                message: The value {{ value }} is not a valid {{ type }}.
  • Annotations
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    // src/Acme/BlogBundle/Entity/Author.php
namespace Acme\BlogBundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class Author
{
    /**
     * @Assert\Type(type="integer", message="The value {{ value }} is not a valid {{ type }}.")
     */
    protected $age;
}
  • XML
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    <!-- src/Acme/BlogBundle/Resources/config/validation.xml -->
<class name="Acme\BlogBundle\Entity\Author">
    <property name="age">
        <constraint name="Type">
            <option name="type">integer</option>
            <option name="message">The value {{ value }} is not a valid {{ type }}.</option>
        </constraint>
    </property>
</class>
  • PHP
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    // src/Acme/BlogBundle/Entity/Author.php
namespace Acme\BlogBundle\Entity;

use Symfony\Component\Validator\Mapping\ClassMetadata;
use Symfony\Component\Validator\Constraints as Assert;

class Author
{
    public static function loadValidatorMetadata(ClassMetadata $metadata)
    {
        $metadata->addPropertyConstraint('age', new Assert\Type(array(
            'type'    => 'integer',
            'message' => 'The value {{ value }} is not a valid {{ type }}.',
        )));
    }
}

Options

type

type: string [default option]

This required option is the fully qualified class name or one of the PHP datatypes as determined by PHP’s is_ functions.

message

type: string default: This value should be of type {{ type }}

The message if the underlying data is not of the given type.

This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.