PHP determines whether the visitor is accessing through a mobile browser. PHP browser information. PHP browser. Open PHP to determine whether the visitor is browsing on WeChat.

This article was originally written by Xiaofeng from MaNong.com. Please read the reprint requirements at the end of the article for reprinting. Welcome to participate in our paid contribution plan!

Today I want to share with you a piece of PHP code. The function of this code is to determine whether the visitor is accessing through a mobile browser. The idea of ​​implementing this function is to determine whether the visitor is accessing through a mobile browser through HTTP_X_WAP_PROFILE, HTTP_VIA, HTTP_USER_AGENT and other information. Visit the PHP website. The following is the PHP code:

/**
 * 是否移动端访问访问
 *
 * @return bool
 */
function isMobile()
{ 
    // 如果有HTTP_X_WAP_PROFILE则一定是移动设备
    if (isset ($_SERVER['HTTP_X_WAP_PROFILE']))
    {
        return true;
    } 
    // 如果via信息含有wap则一定是移动设备,部分服务商会屏蔽该信息
    if (isset ($_SERVER['HTTP_VIA']))
    { 
        // 找不到为flase,否则为true
        return stristr($_SERVER['HTTP_VIA'], "wap") ? true : false;
    } 
    // 脑残法，判断手机发送的客户端标志,兼容性有待提高
    if (isset ($_SERVER['HTTP_USER_AGENT']))
    {
        $clientkeywords = array ('nokia',
            'sony',
            'ericsson',
            'mot',
            'samsung',
            'htc',
            'sgh',
            'lg',
            'sharp',
            'sie-',
            'philips',
            'panasonic',
            'alcatel',
            'lenovo',
            'iphone',
            'ipod',
            'blackberry',
            'meizu',
            'android',
            'netfront',
            'symbian',
            'ucweb',
            'windowsce',
            'palm',
            'operamini',
            'operamobi',
            'openwave',
            'nexusone',
            'cldc',
            'midp',
            'wap',
            'mobile'
            ); 
        // 从HTTP_USER_AGENT中查找手机浏览器的关键字
        if (preg_match("/(" . implode('|', $clientkeywords) . ")/i", strtolower($_SERVER['HTTP_USER_AGENT'])))
        {
            return true;
        } 
    } 
    // 协议法，因为有可能不准确，放到最后判断
    if (isset ($_SERVER['HTTP_ACCEPT']))
    { 
        // 如果只支持wml并且不支持html那一定是移动设备
        // 如果支持wml和html但是wml在html之前则是移动设备
        if ((strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') !== false) && (strpos($_SERVER['HTTP_ACCEPT'], 'text/html') === false || (strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') < strpos($_SERVER['HTTP_ACCEPT'], 'text/html'))))
        {
            return true;
        } 
    } 
    return false;
}

The code is relatively complete. Interested students can do more tests. If you have any bugs, you can leave them in the comments.

The above introduces PHP to determine whether the visitor is accessing through a mobile browser, including PHP and browser content. I hope it will be helpful to friends who are interested in PHP tutorials.