Question

从右侧开始的两列中需要从mySql表输出数据记录，即记录1和1。 2应该出现在第二列而3＆amp; 4应显示在第一列中。这两列都应该能够显示任意数量的记录，而不仅仅是这里显示的两个记录。

mySql表：

1. fname     lname     age     address
2. fname     lname     age     address
3. fname     lname     age     address
4. fname     lname     age     address

使用的代码：

<?php
$con = mysql_connect("localhost","mysql_user","mysql_password");
if (!$con)
   {
   die('Could not connect: ' . mysql_error());
   }

mysql_select_db("test", $con);
?>

<style type='text/css'>
#div1, #div2 {float:left; margin-left:50px; width:300px;}
</style>

<?php
$result = mysql_query("SELECT * FROM member");
$rowcount = mysql_num_rows($result);

echo "<div id='div1'>";
$i = 0;

while($row = mysql_fetch_array($result))
   { 
      echo "Sr. No." . " " . $row['srno'] . " " . $row['fname'] . " " . $row['lname'] . " " . $row['age'] . " " . $row['address'];
   $i++;
   echo "<br/>";
   echo "<br/>";

      if ($i == floor($rowcount / 2)) {

   echo "</div><div id='div2'>";  
    }
   }
echo "</div>";

mysql_close($con);
?>

以上代码的输出：

Sr. No. 1. fname   lname   age   address               Sr. No. 3. fname   lname   age   address
Sr. No. 2. fname   lname   age   address               Sr. No. 4. fname   lname   age   address

需要输出：

Sr. No. 3. fname   lname   age   address               Sr. No. 1. fname   lname   age   address
Sr. No. 4. fname   lname   age   address               Sr. No. 2. fname   lname   age   address

Answer 1

MySQL解决方案：

您的select语句中需要ORDER BY FIELD( ...。

SELECT * FROM member ORDER BY FIELD( id, 3,4,1,2 )

此声明按以下顺序生成您的记录。

3. fname     lname     age     address
4. fname     lname     age     address
1. fname     lname     age     address
2. fname     lname     age     address

请参阅 ：

从右到左输出两列中的MySql数据

1 个答案: