代码:
$user_agent = $_SERVER['HTTP_USER_AGENT'];if (strpos($user_agent, 'MicroMessenger') === false) { // 非微信浏览器禁止浏览 echo "HTTP/1.1 401 Unauthorized";} else { // 微信浏览器,允许访问 echo "MicroMessenger"; // 获取版本号 preg_match('/.*?(MicroMessenger\/([0-9.]+))\s*/', $user_agent, $matches); echo 'Version:'.$matches[2];}