PHP - Tabella con array

[kuarl]

print "<table>";
for($i = 1; $i <= 50; $i++) {
   print "<tr>";
   for($j = 1; $j <= 50; $j++)
      if($i == $j)
         print "<td>$i</td>";
      else
         print "<td>-</td>";
   print "</tr>";
}
print "</table>";