WordPress 根据用户的浏览器和操作系统给 body 标签添加不同的 class

/**

    *WordPress 根据用户的浏览器和操作系统给 body 标签添加不同的 class

    *https://www.weixiaoduo.com/browser-body-class/

*/

functionBing_browser_body_class($classes){

    global$is_lynx,$is_gecko,$is_IE,$is_opera,$is_NS4,$is_safari,$is_chrome,$is_iphone;

    if($is_lynx)$classes[]='lynx';

    elseif($is_gecko)$classes[]='gecko';

    elseif($is_opera)$classes[]='opera';

    elseif($is_NS4)$classes[]='ns4';

    elseif($is_safari)$classes[]='safari';

    elseif($is_chrome)$classes[]='chrome';

    elseif($is_IE){

        $classes[]='ie';

        if(preg_match('/MSIE ([0-9]+)([a-zA-Z0-9.]+)/',$_SERVER['HTTP_USER_AGENT'],$browser_version))$classes[]='ie'.$browser_version[1];

    }else$classes[]='unknown';

    if($is_iphone)$classes[]='iphone';

    if(stristr($_SERVER['HTTP_USER_AGENT'],'mac'))$classes[]='osx';

    elseif(stristr($_SERVER['HTTP_USER_AGENT'],'linux'))$classes[]='linux';

    elseif(stristr($_SERVER['HTTP_USER_AGENT'],'windows'))$classes[]='windows';

    return$classes;

}

add_filter('body_class','Bing_browser_body_class');