public function uninstall()
    {
        $handler = $this->stack->pop();

        if ($handler !== $this) {
            if (null !== $handler) {
                $this->stack->push($handler);
            }

            throw new NotInstalledException();
        }
    }
public function uninstall()
    {
        $handler = $this->stack->pop();

        if ($handler !== $this) {
            if (null !== $handler) {
                $this->stack->push($handler);
            }

            throw new NotInstalledException();
        }
    }
public function uninstall ( ) { $ handler = $ this -> stack -> pop ( ) ; if ( $ handler !== $ this ) { if ( null !== $ handler ) { $ this -> stack -> push ( $ handler ) ; } throw new NotInstalledException ( ) ; } }
Uninstalls this error handler.

@throws NotInstalledException If this error handler is not the top-most handler on the stack.
Uninstalls this error handler .