PHP 程序授权验证开发思路

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); 
} 
$authorization_key = 'jb51.net'; 
echo authorization($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，你的程序未经过脚本之家授权!!'); 
}