tijsverkoyen / CssToInlineStyles

     * @param $string

     * @return mixed|string

     */

    private function cleanup($string)

    {

        $string = str_replace(array("\r", "\n"), '', $string);

        $string = str_replace(array("\t"), ' ', $string);

        $string = str_replace('"', '\'', $string);

        $string = preg_replace('|/\*.*?\*/|', '', $string);

        $string = preg_replace('/\s\s+/', ' ', $string);

        $string = trim($string);

        $string = rtrim($string, ';');

        return $string;

    }

    /**

     * Convert a property-string into an object

     * @param string $string

     * @return string

     */

    private function cleanup($string)

    {

        $string = str_replace(array("\r", "\n"), '', $string);

        $string = str_replace(array("\t"), ' ', $string);

        $string = str_replace('"', '\'', $string);

        $string = preg_replace('|/\*.*?\*/|', '', $string);

        $string = preg_replace('/\s\s+/', ' ', $string);

        $string = trim($string);

        $string = rtrim($string, '}');

        return $string;

    }

    /**

     * Convert a rule-string into an object

     * @param string $css

     * @return string

     */

    private function doCleanup($css)

    {

        // remove media queries

        $css = preg_replace('/@media [^{]*{([^{}]|{[^{}]*})*}/', '', $css);

        $css = str_replace(array("\r", "\n"), '', $css);

        $css = str_replace(array("\t"), ' ', $css);

        $css = str_replace('"', '\'', $css);

        $css = preg_replace('|/\*.*?\*/|', '', $css);

        $css = preg_replace('/\s\s+/', ' ', $css);

        $css = trim($css);

        return $css;

    }

}