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

PHP Display Telephone Number On Referrer
I have used the php below to show a different telephone number in the header of the site depending u

Socket problem
Hello,

Earlier I posted about my problem with my socket script. It took up to 100% CPU usage.

Printing issues with xMII 11.5
For some reason, we have one report (and only one) that is giving us fits when trying to print. The

* Gridview and Detailsview in UpdatePanel, insert mode problem
I have a GridView and DetailsView working together. When a record from Gridview is selected, Detail

dynamic table with forms
I have a table that is populated with mysql data and in teh first column there is a raido button tha

array_count_values question?
ok i'm trying to create a top ten list from a database of listed favorite movies.

the followi

Click counter to ignore traffic from search bots
I have a click counter on my site that...well, counts the number of clicks a link gets on the frontp

TCP Sending Unsigned Char...
Hi...

I want to send over tcp/ip some data, i have the data in hexadecimal, and when i tr

Saas with SAP R/3
hi experts,

Is SaaS offer available in SAP? for SAP R/3? from where i can get the info a

Merger of 6 sister companies under one flagship company after go live
Dear Experts,
I need one help regarding Merger of sister companies of same group. currently we