Index: field.class.php
===================================================================
RCS file: /cvsroot/moodle/moodle/mod/data/field/number/field.class.php,v
retrieving revision 1.6.2.2
diff -u -r1.6.2.2 field.class.php
--- mod/data/field/number/field.class.php	29 May 2008 19:12:37 -0000	1.6.2.2
+++ mod/data/field/number/field.class.php	30 May 2008 15:44:06 -0000
@@ -54,9 +54,14 @@
                 return false;
             }
             $number = $content->content;
-            $decimals = intval($this->field->param1);
-            if (isset($decimals) && is_int($decimals) && $decimals >= 0) {
-                $str = number_format($number, $decimals, '.', '');
+            $decimals = trim($this->field->param1);
+            // only apply number formatting if param1 contains an integer number >= 0:
+            if (preg_match("/^\d+$/", $decimals)) {
+                $decimals = $decimals * 1;
+                // removes leading zeros (eg. '007' -> '7'; '00' -> '0')
+                $str = format_float($number, $decimals, true);
+                // For debugging only:
+#                $str .= " ($decimals)";
             } else {
                 $str = $number;
             }