public function close($which = null)
    {
        if (! $this->buffers->count()) {
            throw new LogicException('It is not possible to close a never opened block.');
        }
        list($buffer, $name) = $this->buffers->pop();
        if (! is_null($which) && $which !== $name) {
            throw new InvalidArgumentException(
                "Please close blocks in order: you need to close other block(s) before \"{$which}\"."
            );
        }
        $output = $buffer instanceof Block ? $buffer->close() : '';

        return $output;
    }
public function close($which = null)
    {
        if (! $this->buffers->count()) {
            throw new LogicException('It is not possible to close a never opened block.');
        }
        list($buffer, $name) = $this->buffers->pop();
        if (! is_null($which) && $which !== $name) {
            throw new InvalidArgumentException(
                "Please close blocks in order: you need to close other block(s) before \"{$which}\"."
            );
        }
        $output = $buffer instanceof Block ? $buffer->close() : '';

        return $output;
    }
public function close ( $ which = null ) { if ( ! $ this -> buffers -> count ( ) ) { throw new LogicException ( 'It is not possible to close a never opened block.' ) ; } list ( $ buffer , $ name ) = $ this -> buffers -> pop ( ) ; if ( ! is_null ( $ which ) && $ which !== $ name ) { throw new InvalidArgumentException ( "Please close blocks in order: you need to close other block(s) before \"{$which}\"." ) ; } $ output = $ buffer instanceof Block ? $ buffer -> close ( ) : '' ; return $ output ; }
Close current block.

@param  string|null $which
@return string
Close current block .