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如何在PHP Mysql中用选定的旧记录回显新记录？

[英]HOW to echo New record with selected old record in PHP Mysql?

 原文  2015-08-05 10:48:29  7   2    php/ mysql/ database/ echo

问题描述

I am new in PhP. 我是PhP新手。 I have a query 我有一个查询 

"SELECT r.client_id,c.id,t.id,a.id,o.id,c.name as cname,t.title as ttitle,a.title as atitle,o.title as otitle, l.title as ltitle, s.title as stitle
FROM og_ratings r 
LEFT JOIN og_companies c
ON r.client_id = c.id
LEFT JOIN og_rating_types t
ON r.rating_type_id = t.id
LEFT JOIN og_actions a
ON r.pacra_action = a.id
LEFT JOIN og_outlooks o
ON r.pacra_outlook = o.id
LEFT JOIN og_lterms l
ON r.pacra_lterm = l.id
LEFT JOIN og_sterms s
ON r.pacra_sterm = s.id
WHERE c.id= 338
ORDER BY r.id DESC
LIMIT 2";

Result of My query is 我的查询结果是

询问

Now i want to print first row of of resulted query and i success. 现在我想打印结果查询的第一行，然后我成功。 But now i want to echo only two columns ltitle and Stitle from second row. 但是现在我只想从第二行回ltitle和Stitle两列。 Here i failed. 在这里我失败了。

Here is my code 这是我的代码 

<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "pacra1";


$conn = new mysqli($servername, $username, $password, $dbname);
//$id2 = $_GET['id'];
$sql= "SELECT r.client_id,c.id,t.id,a.id,o.id,c.name as cname,t.title as ttitle,a.title as atitle,o.title as otitle, l.title as ltitle, s.title as stitle
FROM og_ratings r 
LEFT JOIN og_companies c
ON r.client_id = c.id
LEFT JOIN og_rating_types t
ON r.rating_type_id = t.id
LEFT JOIN og_actions a
ON r.pacra_action = a.id
LEFT JOIN og_outlooks o
ON r.pacra_outlook = o.id
LEFT JOIN og_lterms l
ON r.pacra_lterm = l.id
LEFT JOIN og_sterms s
ON r.pacra_sterm = s.id
WHERE c.id= 338
ORDER BY r.id DESC
LIMIT 1";
$result = $conn->query($sql);
//$array = array('1','2','3');

while ($row = $result->fetch_assoc()){

?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>

<body>

<table border="1">
        <tr>
            <td> ID </td>
            <td> <?php echo $row['client_id'] ?> </td>
        </tr>

        <tr> 
            <td>Name </td>
            <td><?php echo $row['cname'] ?> </td>
        </tr>

        <tr>
            <td>Rating Type </td>
            <td><?php echo $row['ttitle'] ?> </td>
        </tr>
        <tr>
            <td>Action </td>
            <td><?php echo $row['atitle'] ?> </td>
        </tr>
        <tr>
            <td>Outlook </td>
            <td><?php echo $row['otitle'] ?></td>
        </tr>
        <tr>
            <td rowspan="2">Long Term Rating </td>
            <td>Current (<?php echo $row['ltitle'] ?>) <tr><td>Previous (<?php echo $row['ltitle'][0] ?>)</td> </tr></td>
        </tr>

        <tr>
            <td rowspan="2">Short Term Rating </td>
            <td>Current (<?php echo $row['stitle'] ?>) <tr><td>Previous (<?php echo $row['stitle'][0] ?>)</td> </tr></td>
        </tr>


</table>

</body>
</html>

<?php
}?>

Result of my code is 我的代码的结果是

结果

In Previos column of my code i want to print second row data of my db table. 在我的代码的Previos列中，我要打印数据库表的第二行数据。 You can see my result is wrong. 您可以看到我的结果是错误的。 Can you guys please help me? 你们能帮我吗？

2 个解决方案

解决方案1
 2  2015-08-05 12:26:37

用“ ORDER BY r.id DESC LIMIT 1,1”修改sql以直接获取第二行:)

解决方案2
 0  2015-08-05 12:21:58

Yahoo...!!! 雅虎... !!! I have done it. 我已经做了。 Thank You cedricliang for my help 谢谢cedricliang对我的帮助

Just look at my updated code below 只需看下面我更新的代码 

<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "pacra1";


$conn = new mysqli($servername, $username, $password, $dbname);
//$id2 = $_GET['id'];
$sql= "SELECT r.client_id,c.id,t.id,a.id,o.id,c.name as cname,t.title as ttitle,a.title as atitle,o.title as otitle, l.title as ltitle, s.title as stitle
FROM og_ratings r 
LEFT JOIN og_companies c
ON r.client_id = c.id
LEFT JOIN og_rating_types t
ON r.rating_type_id = t.id
LEFT JOIN og_actions a
ON r.pacra_action = a.id
LEFT JOIN og_outlooks o
ON r.pacra_outlook = o.id
LEFT JOIN og_lterms l
ON r.pacra_lterm = l.id
LEFT JOIN og_sterms s
ON r.pacra_sterm = s.id
WHERE c.id= 338
ORDER BY r.id DESC
LIMIT 1";


$sql1= "SELECT r.client_id,c.id,t.id,a.id,o.id,c.name as cname,t.title as ttitle,a.title as atitle,o.title as otitle, l.title as ltitle, s.title as stitle
FROM og_ratings r 
LEFT JOIN og_companies c
ON r.client_id = c.id
LEFT JOIN og_rating_types t
ON r.rating_type_id = t.id
LEFT JOIN og_actions a
ON r.pacra_action = a.id
LEFT JOIN og_outlooks o
ON r.pacra_outlook = o.id
LEFT JOIN og_lterms l
ON r.pacra_lterm = l.id
LEFT JOIN og_sterms s
ON r.pacra_sterm = s.id
WHERE c.id= 338
ORDER BY r.id DESC
LIMIT 1,1";

$result = $conn->query($sql);

$result1 = $conn->query($sql1);
//$array = array('1','2','3');

while ($row = $result->fetch_assoc()){
    while ($row1 = $result1->fetch_assoc()){

?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>

<body>

<table border="1">
        <tr>
            <td> ID </td>
            <td> <?php echo $row['client_id'] ?> </td>
        </tr>

        <tr> 
            <td>Name </td>
            <td><?php echo $row['cname'] ?> </td>
        </tr>

        <tr>
            <td>Rating Type </td>
            <td><?php echo $row['ttitle'] ?> </td>
        </tr>
        <tr>
            <td>Action </td>
            <td><?php echo $row['atitle'] ?> </td>
        </tr>
        <tr>
            <td>Outlook </td>
            <td><?php echo $row['otitle'] ?></td>
        </tr>
        <tr>
            <td rowspan="2">Long Term Rating </td>
            <td>Current (<?php echo $row['ltitle'] ?>) <tr><td>Previous (<?php echo $row1['ltitle'] ?>)</td> </tr></td>
        </tr>

        <tr>
            <td rowspan="2">Short Term Rating </td>
            <td>Current (<?php echo $row['stitle'] ?>) <tr><td>Previous (<?php echo $row1['stitle'] ?>)</td> </tr></td>
        </tr>


</table>

</body>
</html>

<?php
    }
}?>

And the result of my code is 我的代码的结果是

结果

暂无
暂无

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