PHP development corporate website tutorial - adding administrators

In the previous section we have taken out the information from the database and displayed the display page

As you can see from the code in the previous section, we click to add an administrator and submit it to the addu.php page

Let’s take a look at the code of this page

      
  
 用户名：

 密 码：

  
  

Looking at the above code, we can see that the form is submitted to the adduser.php file in the form of post

Let’s do this Take a look at the code of the adduser.php file, and then analyze the code:

alert('管理员已存在');location.href='addu.php';"; }else{ $sql = "insert into `user`(username,password) values('$name','$password')"; $res = mysql_query($sql); if($res){ echo ""; }else{ echo ""; } } ?>

First we also need to connect to the database, and then receive the information submitted by the form

After that we need to judge the form submission Does the user exist? If it exists, a prompt will be given. If it does not exist, you can add it

As shown in the above code, in this way we have completed the function added by the administrator