PHP在行数除以4后得到<div>

I need to divided all data into 4 columns. i have used this method but its not coming column property

   $stmt1 = $db->prepare($sql1);
   $stmt5 = $db->prepare($sql1);
   $stmt5->execute();

   $rowcount = $stmt5->rowCount();

   $pages = ceil($rowcount / 4);
   $tempcount = 1;

if ($stmt1->execute(array())) {
   while ($row = $stmt1->fetch()) {
   ?>

       <?php if ($tempcount == $pages) { ?>

         <div class="column">
         <div class="ui bulleted list">

      <?php } ?>

          <a href="" class="item">  </a>

     <?php
     if ($tempcount == $pages) {
      $pages = $pages + $pages; ?>

          </div>
          </div>

     <?php }
     $tempcount++;
      }
       } ?>

how i can get this columns after getting count of data i have and add those divs in between.

for an Example 20 data rows 20/4 = 5 after each 5 data, i need start and end to be added

    <div class="column">
    <div class="ui bulleted list">

      <a href="" class="item">  </a>
      <a href="" class="item">  </a>
      <a href="" class="item">  </a>
      <a href="" class="item">  </a>
      <a href="" class="item">  </a>

   </div>
   </div>
   <div class="column">
    <div class="ui bulleted list">

      <a href="" class="item">  </a>
      <a href="" class="item">  </a>
      <a href="" class="item">  </a>
      <a href="" class="item">  </a>
      <a href="" class="item">  </a>

   </div>
   </div> 

// And so on

result will be like this

thank you very much

Here's a proper code with comments

$tempcount = 0;
$pages = ceil($rowcount / 4);
while ($row = $stmt1->fetch()) {

    // if result of % (Modulo) is zero - you need to start new column
    if ($tempcount % $pages == 0) {?>
    <div class="column">
         <div class="ui bulleted list">
<?php
    }?>
     <a href="" class="item">ITEM</a>
<?php

    // if result of % (Modulo) is (pages - 1) - you need to close previous column
    if ($tempcount % $pages == ($pages - 1)) {?>
        </div>
    </div>
<?php
    }
    $tempcount++;
}

// check if you have to close previous column 
// because it was not closed in a while loop


if (0 < $rowcount) {
    if ($tempcount % $pages != 0) {?>
            </div>
        </div>
    <?php
    }
}

% modulo will help you PHP operators. While you fetch, use it to create your divider. If using div and if needed, I usually add a tiny div with clear: both to make sure it breaks the line after the 4/8/12... results.

$cell++; 
$jumpline = ($cell % 4) ? "" : "<div class=\"spacer\"></div><br />";
$endit = ($cell % 4) ? "" : "</div>";

Whilst the modulo approach mentioned above will help in these situations, I often find that writing your loops from a different perspective can help in sorting out the situation, and making things more readable.

Rather than looping through every row, and then inserting the columns where you think they need to be. Instead loop every item, but in a controlled count, wrapped by the columns.

I've switched the code to using echo just due to personal preference, you can still use php-breakouts instead if preferred.

Please note this is untested example code, just to illustrate the point:

<?php

$stmt1 = $db->prepare($sql1);
$stmt5 = $db->prepare($sql1);
$stmt5->execute();
$rowcount = $stmt5->rowCount();
$pages = ceil($rowcount / 4);

if ($rowcount) {

  $stmt1->execute(array());

  do {

    $group = '';
    $group .= '<div class="column">';
    $group .= '<div class="ui bulleted list">';

    for ( $i=0; $i<$pages; $i++ ) {
      $row = $stmt1->fetch(); if ( !$row ) { break; }
      // presumably something would be done with $row here
      $group .= '<a href="" class="item"></a>';
    }

    $group .= '</div>';
    $group .= '</div>';

    echo $group;

  } while ( $row );

}