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Symfony 5: The Fast Track is the best book to learn modern Symfony development, from zero to production. +300 pages showcasing Symfony with Docker, APIs, queues & async tasks, Webpack, SPAs, etc.

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Type

2.4 version
Maintained
4.4 5.1 5.2 current 5.3 dev
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

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/Acme/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 -->
<?xml version="1.0" encoding="UTF-8" ?>
<constraint-mapping xmlns="http://symfony.com/schema/dic/constraint-mapping"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/dic/constraint-mapping http://symfony.com/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd">

    <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>
</constraint-mapping>
  • 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.

Also, you can use ctype_ functions from corresponding built-in PHP extension. Consider a list of ctype functions:

Make sure that the proper locale is set before using one of these.

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.