PHP program authorization verification development ideas_PHP tutorial

When making a commercial program, if the client is only allowed to use one server, authorization verification is very important. The following is an idea of ​​mine. Apply the server's PHP environment configuration to the program, generate a permission string, and then write the string into the permission file code. Even if the program is moved to another server unchanged, the program cannot run. I hope everyone can discuss it more...

/**
* bkJia Chinese Forum @authorized string
*/
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 = 2cto.com;

echo authorization($authorization_key);//Here is the generated string verification
$authorization_check = array(dd670852938815f3892d3c511cc8fceb,ddc976cc02bce5c3c22c4d7d201c0cae);//Authorization string, copy the generated character verification here

if (!in_array(authorization ($authorization_key), $authorization_check)) {

​​​​die(Sorry, your program is not authorized by bkJia!!);
}

http://www.bkjia.com/PHPjc/486509.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/486509.htmlTechArticleWhen making a commercial program, if the customer can only use one server, authorization verification is very important. . The following is an idea of ​​mine, to apply the server’s PHP environment configuration to the program...