手机端自动跳转的函数方法

if(is_mobile()){
            $url = $_SERVER['HTTP_HOST'].'/mobile/';
            header("Location://$url");
        }else{
            echo "PC";
        }

//判断是否是手机浏览
function is_mobile(){
    // returns true if one of the specified mobile browsers is detected
    // 如果监测到是指定的浏览器之一则返回true
     
    $regex_match="/(nokia|iphone|android|motorola|^mot\-|softbank|foma|docomo|kddi|up\.browser|up\.link|";
     
   $regex_match.="htc|dopod|blazer|netfront|helio|hosin|huawei|novarra|CoolPad|webos|techfaith|palmsource|";
     
    $regex_match.="blackberry|alcatel|amoi|ktouch|nexian|samsung|^sam\-|s[cg]h|^lge|ericsson|philips|sagem|wellcom|bunjalloo|maui|";
     
    $regex_match.="symbian|smartphone|midp|wap|phone|windows ce|iemobile|^spice|^bird|^zte\-|longcos|pantech|gionee|^sie\-|portalmmm|";   
     
    $regex_match.="jig\s browser|hiptop|^ucweb|^benq|haier|^lct|opera\s*mobi|opera\*mini|320x320|240x320|176x220";
     
    $regex_match.=")/i";
     
    // preg_match()方法功能为匹配字符，既第二个参数所含字符是否包含第一个参数所含字符，包含则返回1既true
    return preg_match($regex_match, strtolower($_SERVER['HTTP_USER_AGENT']));
}

$ua = strtolower($_SERVER['HTTP_USER_AGENT']);

$uachar = "/(nokia|sony|ericsson|mot|samsung|sgh|lg|philips|panasonic|alcatel|lenovo|cldc|midp|mobile)/i";

if(($ua == '' || preg_match($uachar, $ua))&& !strpos(strtolower($_SERVER['REQUEST_URI']),'wap'))
{
    $Loaction = 'mobile/';

    if (!empty($Loaction))
    {
        ecs_header("Location: $Loaction\n");

        exit;
    }

}