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I am building a specialized xml output script (can't use the built in export) and I have a file in the web root that I can call from the URL domain.com/myscript.php. However, I need to be able to do wordpress DB calls to get to the data. I have read you can load wp-load.php in the script - will that be enough?

Maybe there is some other (better) way of doing this but wordpress sends headers so I can't output a clean xml file without the wordpress clutter (header footer etc).

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You could do that, including wp-load.php would bootstrap WordPress and allow you to query the database. I prefer to keep things encapsulated in plugins though, much more portable. You just need to hook early enough to send your own headers, and you can short-circuit the rest of the load process. For example-

function wpd_my_export_script() {
    if( isset( $_GET['do_my_export_stuff'] ) ) {
        header('Content-Type: application/xml; charset=utf-8');
        // do your database stuff
        exit;
    }
}
add_action( 'wp_loaded', 'wpd_my_export_script' );

Then visiting http://example.com/?do_my_export_stuff will trigger your code.

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  • Milo, Thanks for the reply. I think what you suggest is what I'm looking for. However I have a query string in the URL like domain.com/myscript.php?lang=eng&output=xml&type=short. How would I handle that when visiting the URL.
    – Chris
    Commented Mar 26, 2015 at 20:55
  • Just append the extra GET vars to the end of the example URL I gave, but make sure you use GET vars that don't clash with WordPress reserved terms, otherwise you may trigger unexpected things.
    – Milo
    Commented Mar 26, 2015 at 21:02
  • Do you mean like this: domain.com/?do_my_export_stuff?lang=eng&output=xml&type=short
    – Chris
    Commented Mar 26, 2015 at 21:07
  • query strings start with a single ?, multiple vars are separated by a &, so domain.com/?do_my_export_stuff&lang=eng&output=xml&type=short. but note that WordPress already uses type, you may need to change that.
    – Milo
    Commented Mar 26, 2015 at 21:20
  • THANKS MILO!!! I put that code in a plugin file and it works a treat. I'll fix the vars so they are unique.
    – Chris
    Commented Mar 26, 2015 at 21:29

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