Changing for-loops to use pre-calculated values.

Rather than calculating the value each time.

contrib/home/main.php

@@ -69,7 +69,8 @@ class Home extends SimpleExtension {
 		$num_comma = number_format($total);
 
 		$counter_text = "";
-		for($n=0; $n<strlen($strtotal); $n++) {
+		$length = strlen($strtotal);
+		for($n=0; $n<$length; $n++) {
 			$cur = $strtotal[$n];
 			$counter_text .= " <img alt='$cur' src='$data_href/ext/home/counters/$counter_dir/$cur.gif' />  ";
 		}