md5 help

[wanted420]

Just a quick and simple question. What does md5 do? and how does it work?... any tutorials on it or if anyone want to just explain it that would fine. thanks!

[wanted420]

Also how could i check to see if a user came from a specific page?... i cant figure out cookies and sessions so i am seeing if there is away to just check and make sure they came from the login page. seems easier then cookies and sessions........ If anyone out there wants to show me an example cookie session thing for storing a user's username and then explaing each line of code that would probally help out a lot! thanks!!! 🙂

[janhouse00]

MD5 or message digest algorithm, in short, is a message encryptor of some sort. Message encrypted with md5 ensures that it cannot be read by others. What it does is one-way-encryption.

I don't know if this is what you want, but I'm sure that
getenv("HTTP_REFERER") will show the page of origin the visitor came from. Take heed not every server suppots it.

There are couple of articles at this site focus on session and cookie, you might want to check out the Articles section.

[wanted420]

Thank you so much. I was begining to think that noone was going to help me. I read and read but just dont understand.