从Opera broswer测试时，UserAgent中包含的所有浏览器名称

Question

Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.125 Safari/537.36 OPR/30.0.1835.88

$browser_list = array(
            array('search_string' => 'chrome', 'bname' => 'Google Chrome', 'matchname' => 'chrome', 'ub' => 'Chrome'),
            array('search_string' => 'firefox', 'bname' => 'Mozilla Firefox', 'matchname' => 'firefox', 'ub' => 'Firefox'),
            array('search_string' => 'safari', 'bname' => 'Apple Safari', 'matchname' => 'Safari', 'ub' => 'Safari'),
            array('search_string' => 'netscape', 'bname' => 'Netscape', 'matchname' => 'Netscape', 'ub' => 'Netscape'),
            array('search_string' => 'opera', 'bname' => 'Opera', 'matchname' => 'Opera', 'ub' => 'Opera'), // Must be before IE
            array('search_string' => 'MSIE', 'bname' => 'Internet Explorer', 'matchname' => 'IE', 'ub' => 'MSIE'),
            array('search_string' => 'Mozilla', 'bname' => 'Internet Explorer', 'matchname' => 'IE', 'ub' => 'MSIE'), // Hack for IE 11 as the LAST one so you know not match the above
        );

    // Next get the name of the useragent yes seperately and for good reason
    foreach ($browser_list as $item) {
    echo $item['search_string'];
        if (stripos($userAgent, $item['search_string']) !== false) {
            $bname = $item['bname'];
            $matchname = $item['matchname'];
            $ub = $item['ub'];
            echo "breaking";
            break;
        }
    }

还有，为什么歌剧中的用户这么奇怪？

Answer 1

Mozilla/5.0（Windows NT 5.1）AppleWebKit/537.36（KHTML,like Gecko）Chrome/43.0.2357.125 Safari/537.36 OPR/30.0.1835.88

您必须首先在用户代理中搜索“opr/”字符串。这就是Opera与其他浏览器的不同之处。

如果找到此字符串，请停止搜索。其他，继续。所以它不会和其他浏览器混淆。