<?php

$a1= 1;
$a2= 2;
$a3= 3;
$a4= 4;
$a5= 5;
$a6= 6;
$a7= 7;
$a8= 8;
$a9= 9;
$a10= 10;
$a11= 11;
$a12= 12;
$a13= 13;
$a14= 14;
$a15= 15;
$a16= 16;

$b1= 1;
$b2= 2;
$b3= 3;
$b4= 4;
$b5= 5;
$b6= 6;
$b7= 7;
$b8= 8;
$b9= 9;
$b10= 10;
$b11= 11;
$b12= 12;
$b13= 13;
$b14= 14;
$b15= 15;
$b16= 16;

echo '<table height="300px" width="300px" border=2> <tr> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td> </td> <td> </td> <td> </td> <td> </td> </tr>';
?>