Html ..如何使用从一个页面到另一个页面的信息？

Question

1. So I asked the user to enter "First name" "Last name" and click submit and when they click submit it takes them to a different html page. I want to say "Welcome "first name" "last name"

Update: html file....

  <form name ="myForm" action="index.php" method="post" >
      Please Enter your Firstname :<br>
  <input type="text" name="fname" value="" method="post">
  <br>

index.php file

<h1>Welcome <?php echo $_POST["fname"]; ?><br></h1>

But php file only says Welcome...

Answer 1

you should use server side code. for example see this form in w3Schools