$total_fields=24;
//(Im getting the number of total files in a directory with a previous code, so this number can vary)
<form action"second.php" method"post">
$i=1;
while ($i<$total_fields)
{
<input name='field".$i."' type='text' id='field".$i."' />
}$i++;
// submit button and other stuff
</form>

$i=1;
$total_fields=24;
while($i<$total_fields)
{
$field.$i= $_POST['field'.$i];
echo $field.$i."<br>";
$c++;
}