Trying to find the best method - php

Question

I will set up a register page using MSSQL.
The system must work like:
User appends data at something.com/register.php
The data is sent to host-ip-address/regsecond.php which my database will be at. (For security reasons, this php page wont directly access to the database.
The php page at host will start another PHP page or EXE file will directly reach database directly and securely.
As my php level is not high, I wanted to learn If i could start php scripts which will work and do their job without coming into users browsers. Here I explain what I say:
" I append some data at x.php, and it starts another PHP script which will do the job with the DATA appended from x.php but the -another PHP script- wont come into users browser "
I was hopefully clear ,as summary, should I use exe [will be harder] or can I start PHP script without coming into browser. And how of course.

Answer 1

You can do this using the curl extension. You can find info on it here:
http://php.net/manual/en/book.curl.php
You can do something like the following:
$postdata = array(
'item1' => 'data'
);
$ch = curl_init("http://host-ip-address/regsecond.php");
curl_setopt ($ch, CURLOPT_POST, true);
curl_setopt ($ch, CURLOPT_POSTFIELDS, $postdata);
curl_exec($ch);
curl_close($ch);
This makes a call directly from your first script to your second script without exposing anything to the user. On the far side, the data will come in as regular post data ($_POST).

Answer 2

You can't post data through PHP to a different website.
If you would like your website then you can configure your PHP script to connect to a different server for your MySQL, I wouldn't say it's a huge amount safer. For example
Instead of:
mysql_connect(localhost,username,password);
Try this
mysql_connect(http://your-ip:portnumber,username,password);

Answer 3

I'm not sure I understand this correctly but you may
§1 use a "public" php script that invokes a private one:
<?php
//public register script
//now call private
//store data to txt-file or similar..
require('/path/outside/www-data/script_that_processes_further.php');
§2 request a script at another server,
<?php
file_get_contents('http://asdf.aspx?firstname=' . $theFirstName); //simplistic
//other options would be curl, xml/soap or whatever.
§1 may be used with §2.
regards,
/t