Laravel Benutzername Validierung
// include a-z, 0-9 and 1 more -|_
'user' => 'regex:/^([a-z])+?(-|_)([a-z])+$/i'
Dev Arman
// include a-z, 0-9 and 1 more -|_
'user' => 'regex:/^([a-z])+?(-|_)([a-z])+$/i'