OptimizePress Theme Overriding add_filter page_template

Had to switch the filter to the template_include hook. Don’t know if that is the correct way to do it, but it works:

function _plc_template_include ($template) {
    $pages = _plc_get_custom_pages();
    foreach ($pages as $slug => $title) {
        if (is_page ($slug) && is_file (PLC_TEMPLATES . $slug . '.tpl.php')) {
            ob_start();
            include PLC_TEMPLATES . $slug . '.tpl.php';
            $content = ob_get_clean();
            include PLC_TEMPLATES . 'content.tpl.php';
            return;
        }
    }
    include $template;
}
add_filter ('template_include', '_plc_template_include', 99999);

I placed the content of the template into a variable and placed all the content into one template to avoid rewriting the header and footer each time, but easily could have just put:

include PLC_TEMPLATES . $slug . '.tpl.php';
return;

instead of the ob_start & ob_get_clean methods.