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Symfony 5: The Fast Track

A new book to learn about developing modern Symfony 5 applications.

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  4. Constraints
  5. Email
WARNING: You are browsing the documentation for Symfony 2.7 which is not maintained anymore. Consider upgrading your projects to Symfony 4.3.

Email

2.7 version
Maintained
3.4 4.3 current 4.4 5.0 master
Unmaintained
2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.8 3.0 3.1 3.2 3.3 4.0 4.1 4.2

Email

Validates that a value is a valid email address. The underlying value is cast to a string before being validated.

Applies to property or method
Options
Class Email
Validator EmailValidator

Basic Usage

  • Annotations
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    // src/AppBundle/Entity/Author.php
namespace AppBundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class Author
{
    /**
     * @Assert\Email(
     *     message = "The email '{{ value }}' is not a valid email.",
     *     checkMX = true
     * )
     */
     protected $email;
}
  • YAML
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    # src/AppBundle/Resources/config/validation.yml
AppBundle\Entity\Author:
    properties:
        email:
            - Email:
                message: The email "{{ value }}" is not a valid email.
                checkMX: true
  • XML
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    <!-- src/AppBundle/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="AppBundle\Entity\Author">
        <property name="email">
            <constraint name="Email">
                <option name="message">The email "{{ value }}" is not a valid email.</option>
                <option name="checkMX">true</option>
            </constraint>
        </property>
    </class>
</constraint-mapping>
  • PHP
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    // src/AppBundle/Entity/Author.php
namespace AppBundle\Entity;

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

class Author
{
    public static function loadValidatorMetadata(ClassMetadata $metadata)
    {
        $metadata->addPropertyConstraint('email', new Assert\Email(array(
            'message' => 'The email "{{ value }}" is not a valid email.',
            'checkMX' => true,
        )));
    }
}

Options

strict

type: boolean default: false

When false, the email will be validated against a simple regular expression. If true, then the egulias/email-validator library is required to perform an RFC compliant validation.

message

type: string default: This value is not a valid email address.

This message is shown if the underlying data is not a valid email address.

checkMX

type: boolean default: false

If true, then the checkdnsrr PHP function will be used to check the validity of the MX record of the host of the given email.

checkHost

type: boolean default: false

If true, then the checkdnsrr PHP function will be used to check the validity of the MX or the A or the AAAA record of the host of the given email.

payload

type: mixed default: null

New in version 2.6: The payload option was introduced in Symfony 2.6.

This option can be used to attach arbitrary domain-specific data to a constraint. The configured payload is not used by the Validator component, but its processing is completely up to you.

For example, you may want to use several error levels to present failed constraints differently in the front-end depending on the severity of the error.

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