md5 is it unique

Posted on 16th Feb 2014 07:03 pm by admin

I know this is most likely one of many simple questions that can be found semi easily. But I'm pressed for time. I have searched google, php.net, etc. But it only tells me how to make md5 hashes. Ok great that part I knew.

What I am curious of is, if I create a md5 hash and store it as a session a cookie, or an entry in a database for later comparison with something else. If I followed the same exact method of creating the variable for the session, with the same exact data, would it create the same exact hash as before or would it create a new hash that would be diffrent

example

$session_key = md5('Name-of-Product'.'Price'.'Shipping');
$compare_key = md5('Name-of-Product'.'Price'.'Shipping');

for the example above I would initial hash the info for the $session_key

through a series of different actions the user will eventually end up sending the data through the site via some form of variable or another $_POST or $_GET what I am tempting to do is want to make sure that if i take the user provided data that it matches that of the session I created earlier by comparing the 2 hash strings.

Your Answer:

Login to answer

Other forums

Baffled by Undefined Index in Simple Array: Please Help!
Hello. I have a form which posts an array to this script. However, I can't seem to access the values

Regarding accessing SQL query issued by any user in Oracle 10g
Hi all,
i want to know the queries issued by various users accessing a database...

Custom CMS
This is a big custom CMS script I'd like to develop and would like some help atleast figuring out wh

GET vs SUBMIT Button to show sections on one index.php page?
Just curious if one of these ways is better (i.e. more efficient) than the other.

I have a

Need help in log in and log out?
hi there all of u. i have recently created a site for someone. i have placed log in and log out and

Display thumbnails as square while retaining aspect ratio
I am trying to figure out a way to make an image display as a square, for example 80x80 pixels, when

Am i doing this wrong?
Im pulling from an Oracle database some info... one of which is a field count_pnums which is a NUMBE

Error when call dll from oracle
Hi all, please help me!

I have dll write C language, I want call it from oracle procedur

SHOW TABLES Help
Hi all

I have the following

Code: [Select]<?php
$sql = "SHOW TABLES&quo

MSSQL/PHP
I am tryint to setup a webapplication developed in PHP, Apache2.0 and SQLServer2000 as backend which