RawPage = false; $this->BasicHTML = false; $this->OnSystemMessage = array(); $this->Title = ""; $this->Description = ""; $this->ParentClass = ""; } function Show(): string { return ''; } function GetOutput(): string { $Output = $this->Show(); return $Output; } function SystemMessage(string $Title, string $Text): string { return call_user_func_array($this->OnSystemMessage, array($Title, $Text)); } }