How to avoid spam postings in my website

[csharplearner]

Hello all,

I have this strange problem. I have a website where user can post messages to the site. I see from yesterday that someone is trying is manipulate with the forms.

I see some 1048 messages posted in a single minute to the site :( .
I used nl2br(htmlentities(-displaymessage)).. but it only captures html code. What about other scripts code that malicious users try to run.. I see no code or anything displayed in my website. The only thing i see is soo many messages posted to the site in less than a single minute.

Please help me :(.. how to avoid these kind of things...

[buddylee17]

Use captcha .

[csharplearner]

Use captcha .

Thanks for the quick reply. I shall use it definetly.

Can you please tell me how to display that javasrcipt code instead if allowing it to run in the website ..just like capturing html...

[buddylee17]

Either disable html messages or look into using BBCode

[csharplearner]

Either disable html messages or look into using BBCode

Thanx a Ton.