How to use PHP to display information from a submit button?

Question

I am trying to debug my php/html code for a faux login project. The basic idea is you can log in with one of two different submit buttons (so no validation) and then be directed to a page that recognizes who is logged in, using sessions. Right now I am just trying to find out why my code isn't working, before I start styling it in anyway.

Here is my first page:

< ?php
session_start();

$_SESSION["username1"] = "Bob";
$_SESSION["username2"] = "Jo";

? >

<! DOCTYPE html>
<html>
<head>

   <title>Login </title>

</head>

<body>

   <h1>Login</h1><br>
   <br>
   <form action="fauxLogin.php" method="post">
      <input type="submit" name="username1" id="Bob" value="Login as Bob"><br>
      <input type="submit" name="username2" id="Jo" value="Login as Jo"><br>
   </form>

</body>
</html>

And here is the code for my second page:

<?php

session_start();

if(isset($_POST['username1'])){
    "Welcome " . $_SESSION['username1'] . "! You are now logged in.";
}
 elseif(isset($_POST['username2'])){
   "Welcome " . $_SESSION['username2'] . "! You are now logged in.";
 }


? >

When I click to login, I am directed to just a blank page. Am I not correctly using the isset function? Or session? Or accessing the forms? Do I need to close the session before it will work?

Thanks!

dave · Accepted Answer · 2013-11-18 03:38:30Z

4

Try echoing your output:

"Welcome " . $_SESSION['username1'] . "! You are now logged in.";

Should be

echo "Welcome " . $_SESSION['username1'] . "! You are now logged in.";

Otherwise, PHP doesn't do anything, it just concatenates your string, and then it never outputs it.

answered Nov 18, 2013 at 3:38

dave

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1 Comment

user2109706 Over a year ago

Yes, that was it. Glad it wasn't a bigger problem! Thank you!

Matthew Johnson · Accepted Answer · 2013-11-18 03:41:38Z

3

Echo out the content. For example:

echo "Welcome " . $_SESSION['username1'] . "! You are now logged in.";

answered Nov 18, 2013 at 3:41

Matthew Johnson

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1 Comment

user2109706 Over a year ago

Yes, that was it. Glad it wasn't a bigger problem! Thank you!

Kannan Prasad · Accepted Answer · 2013-11-18 04:06:28Z

0

Your are not printing anything in the page that's why the page is empty . Use echo to print your message.

answered Nov 18, 2013 at 4:06

Kannan Prasad

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