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 | Symfony\Component\Validator\Constraints\Email |
| Validator | Symfony\Component\Validator\Constraints\EmailValidator |
Basic Usage¶
- Annotations
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// src/Entity/Author.php namespace App\Entity; use Symfony\Component\Validator\Constraints as Assert; class Author { /** * @Assert\Email( * message = "The email '{{ value }}' is not a valid email." * ) */ protected $email; }
- YAML
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# config/validator/validation.yaml App\Entity\Author: properties: email: - Email: message: The email "{{ value }}" is not a valid email.
- XML
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<!-- config/validator/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 https://symfony.com/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd"> <class name="App\Entity\Author"> <property name="email"> <constraint name="Email"> <option name="message">The email "{{ value }}" is not a valid email.</option> </constraint> </property> </class> </constraint-mapping>
- PHP
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// src/Entity/Author.php namespace App\Entity; use Symfony\Component\Validator\Constraints as Assert; use Symfony\Component\Validator\Mapping\ClassMetadata; class Author { public static function loadValidatorMetadata(ClassMetadata $metadata) { $metadata->addPropertyConstraint('email', new Assert\Email([ 'message' => 'The email "{{ value }}" is not a valid email.', ])); } }
Note
As with most of the other constraints, null and empty strings are
considered valid values. This is to allow them to be optional values.
If the value is mandatory, a common solution is to combine this constraint
with NotBlank.
Options¶
groups¶
type: array | string
It defines the validation group or groups this constraint belongs to. Read more about validation groups.
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.
You can use the following parameters in this message:
| Parameter | Description |
|---|---|
{{ value }} |
The current (invalid) value |
{{ label }} |
Corresponding form field label |
New in version 5.2: The {{ label }} parameter was introduced in Symfony 5.2.
mode¶
type: string default: loose
This option is optional and defines the pattern the email address is validated against. Valid values are:
loosestricthtml5
loose¶
A simple regular expression. Allows all values with an “@” symbol in, and a “.” in the second host part of the email address.
strict¶
Uses the egulias/email-validator library to perform an RFC compliant validation. You will need to install that library to use this mode.
html5¶
This matches the pattern used for the HTML5 email input element.
normalizer¶
type: a PHP callable default: null
This option allows to define the PHP callable applied to the given value before checking if it is valid.
For example, you may want to pass the 'trim' string to apply the
trim PHP function in order to ignore leading and trailing
whitespace during validation.
payload¶
type: mixed default: null
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.