用于搜索mysql数据库的PHP脚本未返回结果

问题描述

按照我编写的代码.即使表中包含关键字，也不会返回任何值.

Following the code I wrote. This doesn't return any values, even though the table has the keywords.

<?php
$conn = mysql_connect("localhost", "root", "qwerty");
mysql_select_db("mis", $conn);
$coursename=$_POST['coursename'];


$sql = "SELECT *
FROM course 
WHERE coursename='$coursename'".
"ORDER BY coursename";

$rs = mysql_query($sql);

while($row = mysql_fetch_array($rs))
{ 
echo $row['coursename'];
};

?>

推荐答案

尝试在<?php之后立即添加error_reporting(E_ALL);，并查看是否从浏览器中收到任何错误消息.

Try to add error_reporting(E_ALL); immediately after your <?php and see if you get any error messages from your browser.

您应该能够找到问题的根本原因.

You should be able to track down the root cause of your problem.

您的课程做得好(我想；).

Good luck with your coursework (i guess ;).

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