[Darax The Good]

I apologize, that code was really lame.... Here is some better code:
(I've read that some versions of PHP don't null terminate strings-if that is the case and $signature is not null terminated this code will run right off the buffer, so be sure to test this before deploying.)

if ($maxlinessig!=0) {
  // check signature lines
    $a = 1;
	$counter =0;
	$linecount =0;
	$maxcounter = 50;
  	while($signature[$a] <> ""){
		$counter++;
		if($signature[$a]==" "){
			$maxcounter=67;		
		}
		if($signature[$a] == "\n" or $counter > $maxcounter)
		{
			$linecount++;
			$counter = 0;
			$maxcounter=50;
		}
		$a++;
	}
	if($linecount>=$maxlinessig){
		eval("standarderror(\"".gettemplate("error_sigtoolong")."\");");
        exit;
	}
}