PHP determines whether the visitor is a mobile client instance_PHP tutorial

Mobile Internet has become very popular recently. We need to build a PC site and a WAP site. To realize that if the user accesses the WAP site from a computer, he will automatically enter the PC site, and vice versa. I have compiled some codes below for you to take a look at.

Method 1: Determine HTTP_USER_AGENT

The code is as follows

Copy code

代码如下	复制代码
$agent = strtolower($_SERVER['HTTP_USER_AGENT']);  if(strpos($agent,"netfront") || strpos($agent,"iphone") || strpos($agent,"midp-2.0") || strpos($agent,"opera mini") || strpos($agent,"ucweb") || strpos($agent,"android") || strpos($agent,"windows ce") || strpos($agent,"symbianos")) {     Header("HTTP/1.1 301 Moved Permanently");     header("Location:####");  die; }

$agent = strtolower($_SERVER['HTTP_USER_AGENT']);

if(strpos($agent,"netfront") || strpos($agent,"iphone") || strpos($agent,"midp-2.0") || strpos($agent,"opera mini") || strpos ($agent,"ucweb") || strpos($agent,"android") || strpos($agent,"windows ce") || strpos($agent,"symbianos")) {
Header("HTTP/1.1 301 Moved Permanently");

header("Location:####"); die;

代码如下	复制代码
if (isset($_SERVER['HTTP_ACCEPT']) && (strpos($_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')) )) {//手机访问 Header("HTTP/1.1 301 Moved Permanently"); header("Location:####"); die; }

}<🎜>

<🎜><🎜> Method 2: Determine HTTP_ACCEPT<🎜>

The code is as follows	Copy code
if (isset($_SERVER['HTTP_ACCEPT']) && (strpos($_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')) )) {//Mobile access <🎜> Header("HTTP/1.1 301 Moved Permanently"); <🎜> header("Location:####"); die; <🎜> }

The above two methods have limitations,

The following two methods are combined to determine

The code is as follows

Copy code

function isMobile() { If(isset($_SERVER['HTTP_X_WAP_PROFILE'])) {          return true; } If(isset ($_SERVER['HTTP_VIA'])) { //If not found, it is false, otherwise it is true           return stristr($_SERVER['HTTP_VIA'], "wap") ? true : false; } If(isset($_SERVER['HTTP_USER_AGENT'])) { //This array needs to be improved            $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' ); // Find keywords for mobile browsers from HTTP_USER_AGENT If(preg_match("/(" . implode('|', $clientkeywords) . ")/i", strtolower($_SERVER['HTTP_USER_AGENT']))) {               return true;           } } // Agreement method, because it may be inaccurate, leave it to the final judgment If (isset ($_SERVER['HTTP_ACCEPT'])) { // If it only supports wml and does not support html, it must be a mobile device // If wml and html are supported but wml comes before html, it is a mobile device if ((strpos($_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 above method also has some minor problems. Here I tell you based on my own experience that we can use the screen width to implement and add the machine type, because sometimes the HTTP_USER_AGENT information is not defined above, but the above implementation It is almost compatible with mainstream mobile phones.

We can also use js

http://www.bkjia.com/PHPjc/632726.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/632726.htmlTechArticleMobile Internet has become very popular recently. We need to build a PC site and a WAP site to realize that if the user accesses the WAP site from a computer It will automatically enter the PC station, and vice versa. Below I have compiled some codes and big...