http://www.icyphoenix.com/viewtopic.php?f=13&t=5591&p=38362#p38362
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Mighty Gorgon
Wed 15 Apr, 2009 22:16

Re: Ot&quote Overload Tryout...
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Did you see this code in bbcode.php?

[codeblock]				// do not process tag if it requires too much recursion
				if($level > 12 && (!$tag_closing && !$tag_self_closing))
				{
					$tag_valid = false;
				}[/codeblock]