使用一个php查询迭代一个包含两行和三列的html表

Question

我有一个数据库表,该表有6行.我想要的是使用3列和2行表在html页面中显示6行.

我知道如何使用php数组和while循环.我的问题是如何限制数组在第一行放置3个项目,并将另外3个项目放在下一行.

这是我尝试但没有奏效的

<div id="maincontent">
  <!-- class one -->
      <?php 
        $getSection = getSection();
        $i=0;
        while($allSection = mysql_fetch_array($getSection)){
      ?>
      <div class="subconent">
<table width="937" border="0">
  <tr>
    <td>
        <div class="sub_image">
            <a href="section.php?id=<?php echo urlencode($allSection['id']); ?>"><img src="admin/uploads/fron_sect/<?php echo $allSection['image']; ?>" width="134" height="120" border="0" alt="HNA" class="PopBoxImageLink"  onmouseover="PopEx(this,-50,-25,205,186,20,null);" onclick="window.location='http://localhost/hants/section.php?id=<?php echo urlencode($allSection['id']); ?>'" /></a>
        </div>
            <div class="cont_txt">
              <h3><?php echo $allSection['name_full']; ?></h3>
                <p><?php echo substr($allSection['description'],0,140) . ""; ?></p>
                <br />
              <a href="section.php?id=<?php echo urlencode($allSection['id']); $i++; ?>"><img src="images/read_more.jpg" alt="Read More" width="89" height="25" border="0" /></a>
            </div>
    </td>
  </tr>
</table>
</div>
<?php 
if($i==4) { ?>
<table width="937" border="0">
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td></tr>
<tr><div class="sub_image">
            <a href="section.php?id=<?php echo urlencode($allSection['id']); ?>"><img src="admin/uploads/fron_sect/<?php echo $allSection['image']; ?>" width="134" height="120" border="0" alt="HNA" class="PopBoxImageLink"  onmouseover="PopEx(this,-50,-25,205,186,20,null);" onclick="window.location='http://localhost/hants/section.php?id=<?php echo urlencode($allSection['id']); ?>'" /></a>
        </div>
            <div class="cont_txt">
              <h3><?php echo $allSection['name_full']; ?></h3>
                <p><?php echo substr($allSection['description'],0,140) . ""; ?></p>
                <br />
              <a href="section.php?id=<?php echo urlencode($allSection['id']); ?>"><img src="images/read_more.jpg" alt="Read More" width="89" height="25" border="0" /></a>
            </div><td>
<?php   }
} ?>
  </div>

Answer 1

使用模运算符(%):

http://www.devchunks.com/web-development/using-the-php-modulus-operator/

这样的事情:

<table>

<?php

$i = 0;
while ( $row = mysql_fetch_array($result) ){
    if ($i % 3 == 0){
        echo '<tr>';
    }
    echo '<td>'.$row['column_name'].'</td>';
    if ($i % 3 == 2){
        echo '</tr>';
    }
    $i++; 
}

//here is a check in case you don't have multiple of 3 rows
if ($i % 3 != 0){
    echo '</tr>';
}

?>

</table>