php- timestable(html out) -better

function getTable($hstart, $hmax, $hstep, $vstart, $vmax, $vstep){
    //do the column header row
        $out = "<table><tbody><tr>";
        for($h=$hstart-$hstep;$h<=$hmax;$h+=$hstep)
            $out .= ($h==$hstart-$hstep) ? "<th></th>" : "<th>".$h."</th>";
        $out .= "</tr>";
    //do the rest
        for($i=$vstart;$i<=$vmax;$i+=$vstep){
            //throw in the row header
            $out .= "<tr><th>".$i."</th>";
            //do the math
            for($j=$hstart;$j<=$hmax;$j+=$hstep)
                $out .= "<td>".$i*$j."</td>";
            $out .= "</tr>";
        }
        $out .= "</tbody></table>";
        return $out;
}