ManaPHP\Renderer::appendSection PHP Метод

    public function appendSection()
    {
        if (count($this->_sectionStack) === 0) {
            throw new RendererException('Cannot append a section without first starting one:');
        }
        $last = array_pop($this->_sectionStack);
        if (isset($this->_sections[$last])) {
            $this->_sections[$last] .= ob_get_clean();
        } else {
            $this->_sections[$last] = ob_get_clean();
        }
    }