public function old($key = null, $default = null)
    {
        return $this->hasSession() ? $this->session()->getOldInput($key, $default) : $default;
    }
public function old($key = null, $default = null)
    {
        return $this->hasSession() ? $this->session()->getOldInput($key, $default) : $default;
    }
public function old ( $ key = null , $ default = null ) { return $ this -> hasSession ( ) ? $ this -> session ( ) -> getOldInput ( $ key , $ default ) : $ default ; }
Retrieve an old input item.

@param  string  $key
@param  string|array|null  $default
@return string|array
Retrieve an old input item .