PHP code sharing to determine where the visitor comes from

小云云
Release: 2023-03-20 16:02:01
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This article mainly shares with you the PHP code to determine where the visitor comes from. Regarding the PHP function to determine whether the visitor is a mobile phone or a PC, I hope it can help everyone.

/*移动端判断*/ 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; }
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