Question

I’m creating a three column table of form fields with the code below. Each row has three columns. If the total number of fields is not a multiple of three then the last row doesn’t contain blank form fields in the remaining columns.

How can I amend this to complete the remaining columns with blank form fields?

<?php
$listCount = count($col);

for ($i = 0; $i < $listCount; ++$i) {    
    if($i % 3 == 0) {
        echo '<tr class="list_row">'; 
    } ?>

    <td><input type="text" style="width: 190px;" name="inputCol1[]" value="<?php echo $col[$i] ?>" /></td>
         
    <?php 
    if($i % 3 == 3) {
         echo '</tr>'; 
    }
}  
?>

Answer 1

You need to complete the last row after the for loop:

for ($i = 0; $i < $listCount; ++$i) {  
  ...
}
if ( ($i % 3) < 2 ) {
  do {
    echo "<td>...</td>";
    $i++;
  } while ($i % 3 != 2);
}

Also, take a look at the comments below your question as $i % 3 will never be 3.

Note: I really should combine the if and do in one nice condition / loop, but it’s too late for that, this should at least work…