detect Url script ?

[lostguy]

I really need sum help...:(

My forum base with alot URL sharing ..I need a script which can store url record so when someone trying post same url the system will say the URL already been posted by someone .

Can anyone help me write a script ? If yes pls pm me ?

Lg

[GameWizard]

Please be more specific, what do you mean by "url sharing". What does that mean?

[lostguy]

example i share a url like http://username:password@www.abc.com/members/ ..I dont want same people enter same format . So if someone enter the same url format the script will say already post by Who and which part the forum .