微信去除 表情图片

function filterNickname($nickname)
 
{
    $nickname = preg_replace(\'/[\x{1F600}-\x{1F64F}]/u\', \'\', $nickname);
 
    $nickname = preg_replace(\'/[\x{1F300}-\x{1F5FF}]/u\', \'\', $nickname);
 
    $nickname = preg_replace(\'/[\x{1F680}-\x{1F6FF}]/u\', \'\', $nickname);
 
    $nickname = preg_replace(\'/[\x{2600}-\x{26FF}]/u\', \'\', $nickname);
 
    $nickname = preg_replace(\'/[\x{2700}-\x{27BF}]/u\', \'\', $nickname);

    $nickname = str_replace(array(\'"\',\'\\'\'), \'\', $nickname);

    return addslashes(trim($nickname));
}