Good script to block Spam letters?

[Monkuar]

I recently found this little script to help people making topics or posts with

 

"WWWWWWWWWWWWWWWWWWWWWWWWWWWWW"

 

OR "XX LETER HERE XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"

 

Here it is:

 

function FindInstances($inputString)
{
    $enter = 0;
    $data = strtolower ($inputString);
    foreach (count_chars ($data, 1) as $i => $val)
        {
            if ($enter == 1)
            {
                $enter = 0;
                continue;
            }
            if (chr ($i) == "\n")
            {
                //echo "There are $val instance(s) of \" Enter \" in the string.\n";
                $enter = 1;
            }
            else
            {
                //echo "  There are $val instance(s) of \"" , chr ($i) , "\" in the string.\n";
			$cletter =''.chr($i).'';


		if ($cletter == 'w' AND $val >= 5){
		message("You cannot have 5 W's in your member title...");
		}if ($cletter == 'o' AND $val >= 5){
		message("You cannot have 5 o's in your member title...");
		}if ($cletter == 'q' AND $val >= 5){
		message("You cannot have 5 o's in your member title...");
		}if ($cletter == 'm' AND $val >= 5){
		message("You cannot have 5 o's in your member title...");
		}if ($cletter == 'g' AND $val >= 5){
		message("You cannot have 5 o's in your member title...");
		}if ($cletter == 'c' AND $val >= 5){
		message("You cannot have 5 o's in your member title...");
		}




            }
        }
}

 

anyone know how to short this baby down so it works for all letters of the alphabet?

[QuickOldCar]

Changed it a little, you should get the idea.

 

<?php
function FindInstances($inputString)
{
$chr_array = range('a','z');
    $enter = 0;
    $data = strtolower(trim($inputString));
    foreach (count_chars ($data, 1) as $i => $val)
        {
            if ($enter == 1)
            {
                $enter = 0;
                continue;
            }
            if (chr ($i) == "\n")
            {
                //echo "There are $val instance(s) of \" Enter \" in the string.\n";
                $enter = 1;
            }
            else
            {
                //echo "  There are $val instance(s) of \"" , chr ($i) , "\" in the string.\n";
			$cletter =''.chr($i).'';


		if (in_array($cletter,$chr_array) AND $val >= 5){
		$chr_check = TRUE;
		}

            }
        }
        
if($chr_check == TRUE){
echo "You can't have 5+ the same letter's in your member title...";
} else {
return $inputString;
}        
    
}

//examples

$text = "writing this sample cccc";
$text2 = "writing this sample ffffffffff";
$text3 = "membername";
$text4 = "a zzzzzzzzzzzzzzzzz";

echo FindInstances($text)."<br />";
echo FindInstances($text2)."<br />";
echo FindInstances($text3)."<br />";
echo FindInstances($text4)."<br />";

?>