从while循环打印的结果中的随机间隙？

Question

我创建了一个搜索表单，允许用户在包装数据库中搜索结果。我最近在将结果打印成三行时遇到了问题，因为所有结果都在下面打印一个，每个结果。我设法解决了这个问题，现在结果是三行，除了现在，有随机间隙，一两行只有一个结果，但结果将在下一行继续 3。我似乎无法确定为什么这是随机发生的。

它似乎没有任何模式，它取决于用户搜索的内容。

这是 PHP 代码：

       <?php
            $con = mysql_connect ("localhost", "horizon1", "");
                   mysql_select_db ("horizon1_delyn", $con);

            if (!$con)
                { 
                    die ("Could not connect: " . mysql_error());
                }

            $descrip = mysql_real_escape_string($_POST['descrip']); 
            $depth   = mysql_real_escape_string($_POST['depth']);
            $varWidth = mysql_real_escape_string($_POST['traywidth']);
            $varHeight= mysql_real_escape_string($_POST['trayheight']);
            $varRange = mysql_real_escape_string($_POST['trayrange']);
            $varType  = mysql_real_escape_string($_POST['traytype']);
            $varShape = mysql_real_escape_string($_POST['trayshape']);
            $varImage = mysql_real_escape_string($_POST['imagename']);

            if (isset($varHeight) && !empty($varHeight)) {
                    $low  = ($varHeight."00");
                    $high = ($varHeight."99");
                } else {
                    $low  = ("000");
                    $high = ("999");
                }

            if (isset($varWidth) && !empty($varWidth)) {
                    $min  = ($varWidth."00");
                    $max = ($varWidth."99");
                } else {
                    $min  = ("000");
                    $max = ("999");
                }   


            $sql = "SELECT * FROM range WHERE 
                        description LIKE '%".$descrip."%'  
                    AND trayrange   LIKE '%".$varRange."%' 
                    AND traytype    LIKE '%".$varType."%' 
                    AND trayshape   LIKE '%".$varShape."%'
                    AND traywidth   BETWEEN '".$min."'  AND '".$max."' 
                    AND trayheight  BETWEEN '".$low."' AND '".$high."' ";


                $r_query = mysql_query($sql);  

    $count = 0;
    while ($row = mysql_fetch_array($r_query)) 
    { 

    $t = $count%1;
    echo ($t==4) ?  '<div id="results">' : '<div id="results" style="float:left">';

    echo '<p class="image">
            <img src="   '. $row['imagename'] . '" width="150" length="80"> 
          </p>';
    echo '<div id="table">
          <br /><strong> Tool Code:  </strong> '. $row['toolcode'];
    echo '<br /><strong> Description:</strong> '. $row['description']; 
    echo '<br /><strong> Tray range: </strong> '. $row['trayrange']; 
    echo '<br /><strong> Tray type:  </strong> '. $row['traytype'];
    echo '<br /><strong> Tray size:  </strong> '. $row['traysize']; 
    echo '<br /><strong> Tray shape: </strong> '. $row['trayshape'] . '</div>' . '<br />';
    echo '<a href="http://www.delynpackaging.co.uk/contact.htm">Enquiry Page</a> <br />' . 
         '<a href="http://176.67.171.11/range-test/rangetest.php">Back to Search</a>';
    echo '</div>' . '</div>';

    $count++;
}

            if (mysql_num_rows($r_query) <= 0){
                echo 'No results match your search, please try again';
           }
    ?>

谁能明白为什么会发生这种情况？

Answer 1

这可能取决于盒子的宽度，当它们不适合行时它们会包裹起来。 还有 $t = $count%1;看起来不寻常，应该是 $t = $count%3;然后条件应为： ($count>0 && $t==0)