function ParameterBag::getAlpha

Returns the alphabetic characters of the parameter value.

File

vendor/symfony/http-foundation/ParameterBag.php, line 102

Class

ParameterBag

ParameterBag is a container for key/value pairs.

Namespace

Symfony\Component\HttpFoundation

Code

public function getAlpha(string $key, string $default = '') : string {
    return preg_replace('/[^[:alpha:]]/', '', $this->getString($key, $default));
}