MySQL Wildcard

Hello All,
What I want to do is get all the fields from a table without  
specifying which ID to grab from.
I am trying to implement a wildcard in my query. What am I doing  
wrong? I keep getting...

"Warning: mysql_fetch_array(): supplied argument is not a valid MySQL  
result resource"

CODE:::::

function getOptGrps($ID){
       if ($ID == "All") {
          $ID = "%"; // % = MySQL multi character wildcard
       }
       $q = "SELECT * FROM ".OPT_GRPS_TABLE." WHERE OptGrpID LIKE  
'$ID' ";
       $result = $this->query($q);
       /* Error occurred, return given name by default */
       if(!$result || (mysql_numrows($result) < 1)){
          return NULL;
       }
       /* Return result array */
       $array_results = mysql_fetch_array($result);
       return $array_results;
    }

AND this does not work either

function getOptGrps(){
       $q = "SELECT * FROM ".OPT_GRPS_TABLE;
       $result = $this->query($q);
       /* Error occurred, return given name by default */
       if(!$result || (mysql_numrows($result) < 1)){
          return NULL;
       }
       /* Return result array */
       $array_results = mysql_fetch_array($result);
       return $array_results;
    }

TIA,

Karl DeSaulniers
Design Drumm
http://designdrumm.com