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PHP Discussion Thread
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Mar 24th, 2009

prevent links in textarea

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Hi All

I'm trying to combat some SPAM coming through on a booking form. It's all the usual rubbish.

I've been searching to find the php code that would do the following

if ($msg contains http:// or www.) {echo "Please don't put links in the comments - it looks like SPAM";}

else

email me (all this is already working)

I only know enough php to alter the sendmail from to my needs so far and can't work out (or find through google) the syntax to write this.

Would really appreciate any help you could offer.

Thanks

Last edited by webecho; Mar 24th, 2009 at 1:10 am. Reason: clarify and simplify php line i'm looking for

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webecho

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Mar 24th, 2009

Re: prevent links in textarea

OK
Seem to have solved it

PHP Syntax (Toggle Plain Text)
elseif (preg_match("/www/", $msg)) {
		echo "Please don't post links in the questions box - it looks like SPAM and your message has NOT been sent";
 
  }
elseif (preg_match("/www/", $msg)) {
		echo "Please don't post links in the questions box - it looks like SPAM and your message has NOT been sent";
		
  }

Basically, this just searches for the string www and if it finds it will display the message and warn them their email hasn't been sent.

webecho

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Mar 24th, 2009

Re: prevent links in textarea

that won't stop all urls. http://google.com would work.

for a simple solution, change "/www/" to "/(http:\/\/|www)/"

kkeith29

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Mar 24th, 2009

Re: prevent links in textarea

nice one kkeith ... of course, why I didn't think of that I don't know.

I assume they're forward slash backslash in between. Like I said I'm not much cop with php so it's great to get help with the actual code ... and having someone point out the obvious! Cheers mate.

webecho

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