PHPで取得したやつをメモ
$ua = strtolower($_SERVER['HTTP_USER_AGENT']);
Chorome
mozilla/5.0 (windows nt 10.0; win64; x64) applewebkit/537.36 (khtml, like gecko) chrome/66.0.3359.139 safari/537.36
IE11
mozilla/5.0 (windows nt 10.0; wow64; trident/7.0; touch; rv:11.0) like gecko
IE10(IE11のエミュレータ)
mozilla/5.0 (compatible; msie 10.0; windows nt 6.2; trident/6.0)
IE8(IE11のエミュレータ)
mozilla/4.0 (compatible; msie 8.0; windows nt 6.1; trident/4.0)