BUG session_start(): Cannot start session when headers already sent

[sebastian]

I use your plug in for years now working fine. Until a few weeks.

I use the following code on my page, which was working fine for years:

[insert_php]
session_start();
$_SESSION["selectedtariff"] = $_POST["selectedtariff"];
[/insert_php]

Now I get the following error message:
Warning: session_start(): Cannot start session when headers already sent in /homepages/XXX/wp-content/plugins/xinsert-php/includes/shortcodes/shortcode-php.php(52) : eval()'d code on line 1

Old [insert_php] is activated in the settings.
If I create a global php-snippet with this code it works, but then my code on the following webpage
[insert_php]
include "tarc/confirm.php";
[/insert_php]

is not working.

Do you have a solution or any ideas how to solve this problem?
Thank you in advance for your help!

 

[Temyk]

Hello.

This error means that some kind of output to the browser has been carried out recently before you create a session. Judging by the error, one of your PHP snippets outputs something when the page loads.
It may even be an empty line at the beginning of your snippet code

 

[sebastian]

Hi Temyk!

Thank you for your fast reply.
Is there a possibility to get support on my webpage?
As my php skills are limited, I need a professional ;-)

Sebastian

 

[Temyk]

We provide support only for the work of the plugin.
We do not support your code.