<? 
echo "<table>"; 

echo "<tr>";
$satir=0;

    for($i=1;$i<=50;$i++){ 

$satir++;
    echo "<td>";
    echo $i;
    echo "</td>";

if ($satir == 5) { 
$satir = 0; 
    echo "</tr>";
    echo "<tr>";
           
    } 
} 

echo "</tr>";
echo "</table>"; 

?>