Question

How can I count how many fields there are in this row:

$row['number']
while ($row = mysql_fetch_array($result))
{
    echo '
    <td class="alt">'.$row['number'].'</td>
    $number = $row['number']
}

Answer 1

Try to use mysql_num_fields().
Example:

<?php
$result = mysql_query("SELECT `field1`,`field2` FROM `table`");
/* returns 2 because field1, field2 === two fields */
echo mysql_num_fields($result);
?>