user_validate_name($name)
Verify the syntax of the given name.
Parameters
string $name: The user name to validate.
Return value
string|null A translated violation message if the name is invalid or NULL if the name is valid.
File
- core/modules/user/user.module, line 267
- Enables the user registration and login system.
Code
function user_validate_name($name) {
$definition = BaseFieldDefinition::create('string')
->addConstraint('UserName', array());
$data = \Drupal::typedDataManager()->create($definition);
$data->setValue($name);
$violations = $data->validate();
if (count($violations) > 0) {
return $violations[0]->getMessage();
}
}
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