LarkRiseMedia

/**
 * Removes the value ›nofollow‹ from the rel attribute.
 */
function xwp_dofollow($str)
{
    $str = preg_replace(
        '~<a ([^>]*)\s*(["|\']{1}\w*)\s*nofollow([^>]*)>~U',
        '<a ${1}${2}${3}>', $str);
    return str_replace(array(' rel=""', " rel=''"), '', $str);
}