php 获取访问者手机型号

<?php
$user_agent = $_SERVER['HTTP_USER_AGENT'];
    if (stripos($user_agent, "iPhone")!==false) {
        $brand = 'iPhone';
    } else if (stripos($user_agent, "SAMSUNG")!==false || stripos($user_agent, "Galaxy")!==false || strpos($user_agent, "GT-")!==false || strpos($user_agent, "SCH-")!==false || strpos($user_agent, "SM-")!==false) {
        $brand = '三星';
    } else if (stripos($user_agent, "Huawei")!==false || stripos($user_agent, "Honor")!==false || stripos($user_agent, "H60-")!==false || stripos($user_agent, "H30-")!==false) {
        $brand = '华为';
    } else if (stripos($user_agent, "Lenovo")!==false) {
        $brand = '联想';
    } else if (strpos($user_agent, "MI-ONE")!==false || strpos($user_agent, "MI 1S")!==false || strpos($user_agent, "MI 2")!==false || strpos($user_agent, "MI 3")!==false || strpos($user_agent, "MI 4")!==false || strpos($user_agent, "MI-4")!==false) {
        $brand = '小米';
    } else if (strpos($user_agent, "HM NOTE")!==false || strpos($user_agent, "HM201")!==false) {
        $brand = '红米';
    } else if (stripos($user_agent, "Coolpad")!==false || strpos($user_agent, "8190Q")!==false || strpos($user_agent, "5910")!==false) {
        $brand = '酷派';
    } else if (stripos($user_agent, "ZTE")!==false || stripos($user_agent, "X9180")!==false || stripos($user_agent, "N9180")!==false || stripos($user_agent, "U9180")!==false) {
        $brand = '中兴';
    } else if (stripos($user_agent, "OPPO")!==false || strpos($user_agent, "X9007")!==false || strpos($user_agent, "X907")!==false || strpos($user_agent, "X909")!==false || strpos($user_agent, "R831S")!==false || strpos($user_agent, "R827T")!==false || strpos($user_agent, "R821T")!==false || strpos($user_agent, "R811")!==false || strpos($user_agent, "R2017")!==false) {
        $brand = 'OPPO';
    } else if (strpos($user_agent, "HTC")!==false || stripos($user_agent, "Desire")!==false) {
        $brand = 'HTC';
    } else if (stripos($user_agent, "vivo")!==false) {
        $brand = 'vivo';
    } else if (stripos($user_agent, "K-Touch")!==false) {
        $brand = '天语';
    } else if (stripos($user_agent, "Nubia")!==false || stripos($user_agent, "NX50")!==false || stripos($user_agent, "NX40")!==false) {
        $brand = '努比亚';
    } else if (strpos($user_agent, "M045")!==false || strpos($user_agent, "M032")!==false || strpos($user_agent, "M355")!==false) {
        $brand = '魅族';
    } else if (stripos($user_agent, "DOOV")!==false) {
        $brand = '朵唯';
    } else if (stripos($user_agent, "GFIVE")!==false) {
        $brand = '基伍';
    } else if (stripos($user_agent, "Gionee")!==false || strpos($user_agent, "GN")!==false) {
        $brand = '金立';
    } else if (stripos($user_agent, "HS-U")!==false || stripos($user_agent, "HS-E")!==false) {
        $brand = '海信';
    } else if (stripos($user_agent, "Nokia")!==false) {
        $brand = '诺基亚';
    } else {
        $brand = '其他手机';
    }
echo $brand;
?>