using for loop in function

["Richard Kurth" <richardkurth@xxxxxxxxxxxxxx>]

   The function below will create a group of checkboxes it will also check
the checkbox that is stored in the table field that is in $select_value this
works fine if there is only one value in the variable but if there is more
stored like 1,2,3,4 it will not work. I am trying to figure out how to use
the following for loop to add the number to each checkbox and if they match
mark the checkbox checked
 
 
 $ExplodeIt = explode(",",$select_value,",");
        $Count = count($ExplodeIt);
        for ($i=0; $i < $Count; $i++) {
          }
 
 
 
function checkbox($sqlu,$name,$value1,$value2,$select_value){
      $name_result = safe_query($sqlu);
       while($rowu=mysql_fetch_array($name_result)){
  echo "<tr><td colspan=\"2\" align=\"left\"><input type='checkbox' name='"
. $name . "[" . $rowu[$value1] . "]' value=\"$rowu[$value1]\"";
  
         if($select_value==$rowu[$value1]) {
  
           echo " checked>$rowu[$value2]\n</td></tr><BR>";
     
   }else{
              echo ">$rowu[$value2]\n</td></tr><BR>";
      }
   }
}