php判断访问者是否手机客户端实例_PHP教程

$agent = strtolower($_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;
}

function isMobile() {
if(isset($_SERVER['HTTP_X_WAP_PROFILE'])) {
return true;
}
if(isset ($_SERVER['HTTP_VIA'])) {
//找不到为flase,否则为true
return stristr($_SERVER['HTTP_VIA'], "wap") ? true : false;
}
if(isset($_SERVER['HTTP_USER_AGENT'])) {
//此数组有待完善
$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;
}