Question

<table><tr>
<?php
             for($i=0;$i<15;$i++) {

                if($i%5 == 0) {echo '</tr> <tr>';}
                ?><td><?php echo $i ?></td> 

            <?php
            }?>
                </tr>
</table>

this generate:

0   1   2   3   4
5   6   7   8   9
10  11  12  13  14

how can I make:

0 3 6 9  12
1 4 7 10 13
2 5 8 11 14

?

Answer 1

Tested example with given start and end:

<table>
<?php
$start = 1300;
$end = 1432;
$n = $end - $start + 1;
$cols = 5;
$rows = ceil($n / $cols);

for($i=0 ; $i < $rows ; $i++ ) {
    echo "<tr>";
    for( $j = 0 ; $j < $cols ; $j++ ) { 
        $val = $j * $rows + $i;
        echo "<td>";
        echo ($val < $n) ? $val + $start : '&nbsp;'; 
        echo "</td>";
    }
    echo "</tr>";
}
?>
</table>