internetimage

I simplify the code for you:

add_action('init', 'process_post', 21);
function process_post() {
 if (isset($_GET['output']) && $_GET['output'] == 'pdf') {

        if (shortcode_exists('table')) {
            echo "EXIST";
        } else {
            echo "NOT EXIST";
        }
        echo do_shortcode('[table id=1 /]');
        exit();
}
}

The result is : NOT EXIST [table id=1 /]

I did not understand.

I use the shortcode in template but i render all in the pdf insted in html page.

Thanks for reply.
I try to print the table in a pdf.
When I click “print” I process some parameter in the post variable and print the page with the mpdf library.

Regards