function authorization($seed = '') {
$encode = $_SERVER['SERVER_SOFTWARE'] . $_SERVER['SERVER_NAME'] . $_SERVER['DOCUMENT_ROOT'] .
$_SERVER['SERVER_ADMIN'] . $_SERVER['SERVER_ADDR'] . PHP_VERSION . PHP_OS . __FILE__;
return md5 ($encode);
}
$authorization_key = 'ruanchen.com';
echo authorization($authorization_key);//这里是生成字符串验证
$authorization_check = array('dd670852938815f3892d3c511cc8fceb','ddc976cc02bce5c3c22c4d7d201c0cae' );//授权字串，把生成的字符验证复制到这里来
if (!in_array(authorization ($authorization_key), $authorization_check)) {
die('对不起，你的程序未经过软晨学习网授权!!');
}