Question

我的课程作业部分是允许用户添加或删除课程。我从MySQL数据库中生成了一个学生从PHP中学习的类列表。我想让用户能够输入他们想要添加或删除的类。在他们键入要添加/删除的类之后，将生成更新的类列表。我不知道这是否可能以我要求的方式进行。

我的PHP代码是：

＆＃13;

<?php
include("account.php");
//connect to MySQL database
session_start();
$dbc = mysqli_connect($hostname, $username, $password, $database) or die("Unable to connect to MySQL database");
echo "Connected to MySQL<br>";
$user = $_POST['name'];
$num = $_POST['number'];
$choice = $_POST['list'];
if(isset($_POST['Submit']))
{
    if (empty ($user)) 
    {
        echo "you must enter your unique username <br />";
    }
    if (empty ($num)) 
    {
        echo "you must enter your ID <br />";
    }
   
	$query = "SELECT * FROM StudentDB WHERE StudentName = '". mysqli_real_escape_string($dbc,$user) ."' AND StudentID = '". mysqli_real_escape_string($dbc,$num) ."'" ;
	$result = mysqli_query($dbc,$query);
	if (mysqli_num_rows($result) == 1) 
	{
       if ($choice == '1')
	   {
		while($row = mysqli_fetch_array($result, MYSQLI_BOTH))
		{
			echo 'Student Name: ' . $row['StudentName'] . '| Student E-Mail: ' . $row['E-Mail'] .';'. '| Student ID: ' . $row['StudentID'] . '| Student Courses: ' . $row['Student Courses'] .'<br />';
		}
 
	   }
	   if ($choice == '2')
	   {
		 while($row = mysqli_fetch_array($result, MYSQLI_BOTH))
		{
			echo 'Student Name: ' . $row['StudentName'] . '| Student E-Mail: ' . $row['E-Mail'] .';'. '| Student ID: ' . $row['StudentID'] . '| Student Courses: ' . $row['Student Courses'] .'| Student Transcript: ' . $row['Student Transcript'] .'<br />';
		}
	   } 
	}
	else
	{
		echo"unsuccessful login";
	}
session_destroy();
}
else
{
		echo "Empty";
}
?>

＆＃13;

这就是我看待它的样子（在我看来）：

originial class list

add: type the class you want to add

drop: Type the class you want to drop

updated class list

我觉得无论如何都需要一个处理按钮来完成这项工作，但我不知道是否需要这样做。任何帮助用户输入信息以更新班级列表的帮助都将不胜感激。

感谢。

很抱歉，如果这很麻烦或令人困惑，因为我的笔记本电脑即将死亡，而且我试图在此之前解决这个问题。

如何让用户在PHP中编辑MySQL数据库？

0 个答案: