如何在用户输入结尾添加文本？

Question

I have been given some spaghetti code for a login page to fix.

We've got two input fields ID and Password.

Here's what I've been asked. So in terms of a user inputting their ID, I want to add '@email.com' onto the end.

Im assume placeholder="@email.com" would work if i could align it to the right, but I also need to it to be added into the POST method. So if the user entered 'ID123' it would post '[e-mail]'

Here is the form:

<form action="command.php" formmethod="post">
       <div class="ID">User ID:<br><input name="ID" type="text"><br></div>
        <div class="Pass"> Password:<br><input name="pwd" type="password"></div>
        <input id="submit" type="submit" value="Sign In">

Can anyone help? Is it even possible?

</div>

Answer 1

Placeholder in the input type in HTML will just give a hint in a textbox and it will not be added into the input of the user. What you need to do is catch the input type in the command.php you created and add it.

for example, in the command.php

$ID = $_POST['ID'].'@gmail.com'