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Get variable , ip address, computername in php ?

Posted on 2011-09-14
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Last Modified: 2012-05-12
Hi,

I plan to sell some streaming educational videos on internet. These videos will be embedded in an PHP file on my server. A specific variable is available called $userid from some other application. I want to put this $userid with ip address, computername and if possible user login name and put it in a table in database. This way I can record who is accessing this page.

Is this possible ? Can somebody give sample code ?
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Question by:Vaibhav_joshi
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Julian Hansen earned 500 total points
ID: 36535828
first create a database on a server (assuming MySQL)
Create a table called tbldownloads (or something)
// modify to your needs (not meant to be a script)
create tbldownloads (
id int PRIMARY_KEY AUTOINCREMENT NOT NULL,
userid char(20),
ipaddress char[20],
downloaded timestamp default CURRENT_TIMESTAMP,
mediaid int
);

// php
// change to match your server
define('gb_server', 'server');
define('gb_user','user');
define('gb_password',password');
define('gb_database','database_name');

$db = @mysql_connect(gb_server,gb_user,gb_password);
@mysql_select_db(gb_database) or die( "Unable to select database");

$ipaddress = isset($_SERVER['REMOTE_ADDR'])?$_SERVER['REMOTE_ADDR']:(isset($_SERVER['REMOTE_HOST'])?$_SERVER['REMOTE_HOST']:'undefined');

$userid = '' wherever you get this from " ;

$mediaid = "whatever the media id is for the download - get from URL or wherever";

$query = "INSERT INTO tbldownload(userid, ipaddress, mediaid) VALUES('$userid','$ip','$mediaid')";

$result = mysql_query($query);

// check result for errors and any other code you need
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Expert Comment

by:garykristen
ID: 36535881


Have a look at the INET_NTOA and INET_ATON functions in mysql. They convert between dotted notation IP address to 32 bit integers. This allows you to store the IP in just 4 bytes rather than a 15 bytes. Make sure you use an unsigned int and not a signed int.
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by:Julian Hansen
ID: 36536001
yes and you can use ip2long as well but you can worry about that later - for now get your basic functionality up and running - saving 11 bytes of data you can implement when you start selling thousands of downloads
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Expert Comment

by:Ray Paseur
ID: 36536481
This article describes how to handle client authentication using a data base with user name and password.
http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/A_2391-PHP-login-logout-and-easy-access-control.html

The IP address is available in $_SERVER["REMOTE_ADDR"].  You can find many other interesting things if you run the script in the code snippet.

The "computername" is not a term of art in PHP programming and is probably not available to your script.

This is a really good book that teaches many of the ways that PHP and MySQL interact.  Very readable with great examples.  Now in its fourth printing, it has been a permanent part of my professional library since Version One.
http://www.sitepoint.com/books/phpmysql4/

Best regards, ~Ray
<?php phpinfo(); // YEP, THAT IS ALL THERE IS TO THIS SCRIPT!

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