php-general | 2001032

[PHP] RE: [PHP-DB] Login System with access levels From: Rick Emery (remery <email protected>)
Date: 03/16/01

First, I would NOT store passwords in a database. Rather, I'd store a hash
based upon the password and username. Storing a password is dangerous as
regards security.

Second, if you're asking for syntax on how to add the security level column:
  ALTER TABLE mytable ADD access tinyint unsigned not null default "0";

This will allow you to assigned security levels from 0 to 255. You would
set 0 as the lowest level and 255 (admin) as the highest.

While you're at it, add the has security hash entry (discussed above):
  ALTER TABLE mytable ADD md5hash char(32) not null default "";

Hashes are always 32 characters.

Finally, as far as a query:
  SELECT * FROM mytable WHERE access <= $level;

This will permit the searcher to locate anything whereby the level is at
$level or lower.
-----Original Message-----
From: Jordan Elver [mailto:jord.elver <email protected>]
Sent: Friday, March 16, 2001 1:28 PM
To: PHP General Mailing List; PHP DB Mailing List
Subject: [PHP-DB] Login System with access levels

Hi,
I've got a db with a username and password in it. I can let people log in,
like SELECT * FROM table WHERE username = username AND password = password.

But how can I add an access level column so that I can have different levels

of security. So admin's can read everything, but users can only read certain

sections.

How could I add to my db and structure a query?

Any ideas would be good,

Cheers,

Jord 

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