Problem with short script

PHP
1

Hi there,
I get an output I can’t explain.

<?php
if (!isset($_SESSION)) {
   session_start();
}
include "mysqlopen.php";
    $uname="";
    $pwd="";
   if(isset($_REQUEST['uname']))
    {
        $uname = $_REQUEST['uname'];
    } 
    if(isset($_REQUEST['pwd']))
    {
        $pwd = $_REQUEST['pwd'];
    }
if ($uname="" or $pwd=""){
      return;
 }
echo "so far...";
?>

gives me the output:
?> so far…
Since it is pure PHP, I can’t see where ?> is coming from.
any help welcome

2

Do you have a spurious ?> in mysqlopen.php by any chance?

What is the return statement supposed to do?

3

Blush.
Right. Think further than one script when include.
Thank you very much.
The return goes back to the login page. I hope. Just read the manual.I have not a strategy for false inputs yet.
In fact I want to keep the previous inputs of the user; it’s irritating being forced to write all over again.

4

I don’t think return is going to work there - it’s not a function.

So long as you’ve not output anything to the browser, you should be able to use header to redirect back to the login page.

5

I wrote a function for that now, thanks. Wanted to avoid lol
In the PHP manual it says: Returns to the calling script. It doesn’t.

6

Try adding this declaration and two debug settings at the start of your PHP script. Remove when online.

<?php
declare(strict_types=1); // applies to this file only
error_reporting(-1); // applies to this and included files
ini_set('display_errors','1'); // applies to this and included files
7

Actually you can return from a script as well. You can even return a value to the script that includes it:

a.php:

$a = require 'b.php';

echo $a;

b.php:

return 'Hello world';

When you run a.php, it will echo Hello world.

Not saying it’s a good idea, just saying it’s possible :wink:

2 Likes
8

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