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 |
Class | |
Validator | EmailValidator |
Basic Usage ¶
-
Attributes
属性
-
YAML
YAML
-
XML
XML
-
PHP
PHP
1 2 3 4 5 6 7 8 9 10 11 12 |
// 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;
}
|
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 of this constraint. 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 |
mode
¶
type: string
default: (see below)
This option defines the pattern used to validate the email address. Valid values are:
loose
uses a simple regular expression (just checks that at least one@
character is present, etc.). This validation is too simple and it's recommended to use one of the other modes instead;Loose は単純な正規表現を使用します (少なくとも 1 つの @character が存在することなどを確認するだけです)。この検証は単純すぎるため、代わりに他のモードのいずれかを使用することをお勧めします。html5
uses the regular expression of the HTML5 email input element, except it enforces a tld to be present.html5 は、tld の存在を強制することを除いて、HTML5 電子メール入力要素の正規表現を使用します。html5-allow-no-tld
uses exactly the same regular expression as the HTML5 email input element, making the backend validation consistent with the one provided by browsers.html5-allow-no-tld は、HTML5 電子メールの入力要素とまったく同じ正規表現を使用して、バックエンドの検証をブラウザーが提供するものと一致させます。strict
validates the address according to RFC 5322 using the egulias/email-validator library (which is already installed when using Symfony Mailer; otherwise, you must install it separately).strict は、egulias/email-validator ライブラリを使用して RFC 5322 に従ってアドレスを検証します (これは Symfony Mailer を使用するときに既にインストールされています。それ以外の場合は、個別にインストールする必要があります)。
6.2
The html5-allow-no-tld
mode was introduced in 6.2.
Tip
The possible values of this option are also defined as PHP constants of
Email
(e.g. Email::VALIDATION_MODE_STRICT
).
The default value used by this option is set in the framework.validation.email_validation_mode configuration option.
6.2
The loose
value is deprecated since Symfony 6.2. Starting from
Symfony 7.0, the default value of this option will be html5
.
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.