E-Mail-Adresse auf Konformität prüfen
function is_email($email) {
return preg_match("/^[_a-zA-Z0-9-]+(.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-.]+.([a-zA-Z]{2,4})$/", $email);
}
function is_email($email) {
return preg_match("/^[_a-zA-Z0-9-]+(.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-.]+.([a-zA-Z]{2,4})$/", $email);
}