[Resolved] Parsing textarea input for URL

[datona]

I have a form that has a textarea box.
I am looking at searching the text in that input box for URL's.
I want to STOP people from entering URL's in that textarea box.
Is there a way?? If so, could someone provide either some coding and/or ??????
Thanks in advance for any help 🙂

[konsu]

you can use regular expressions.

[devinemke]

Originally posted by konsu
you can use regular expressions.

...more specifically:

$textarea = 'please visit http://www.google.com to search the web';

$textarea = preg_replace('#(http://)([^\s]*)#', '[URL removed]', $textarea);
$textarea = preg_replace('=(www.)([^\s]*)=', '[URL removed]', $textarea);

echo $textarea;

[datona]

devinemke,
That works GREAT!!! But......I am looking for I guess a "function" (sorry, I should have explained) that will kick back something if a URL is found.
I just want it to work in a way that if someone enters a URL, it will reload the page and display the error that we don't allow URL's.
Thanks

[devinemke]

$textarea = 'please visit http://www.google.com to search the web';

if (preg_match('#(http://)([^\s]*)#', $textarea) || preg_match('=(www.)([^\s]*)=', $textarea))
{
	echo 'no URLs allowed';
}

[datona]

Thanks ALOT for your help