gistfile1.phtml

// I am using Gravity Forms together with the 'User Registration' and 'PayPal Standard' Add-On's 
// to create new sites on a Multisite network.

// Upon confirmation of a successful PayPal payment, a new site is created with some default pages 
// created and custom options applied.

// An abbreviated version of my new site creation function is shown below:

function new_site_setup($blog_id) {   
    
          switch_to_blog($blog_id);
  
                    wp_delete_post(1, true);
  
                    wp_delete_post(2, true);
  
                    $default_pages = array(
                              array(
                                      'type'	=> 'page', 
                                      'title' 	=> __('Home', 'textdomain'), 
                                      'content' 	=> __('Home text.', 'textdomain'),
                              ),
                              array(
                                      'type'	=> 'page', 
                                      'title' 	=> __('About Us', 'textdomain'), 
                                      'content' 	=> __('About Us text.', 'textdomain'),
                              ),
                              array(
                                      'type'	=> 'page', 
                                      'title' 	=> __('Contact', 'textdomain'), 
                                      'content' 	=> __('Contact text.', 'textdomain'),
                              ),
                    );
  
                    foreach ($default_pages as $var) {       
                              $data = array(
                                      'post_type'    	=> $var['type'], 
                                      'post_title'   	=> $var['title'],
                                      'post_content' 	=> $var['content'],
                                      'post_status'  	=> 'publish',
                                      'post_author'  	=> 1, 
                                      'comment_status' 	=> 'closed',
                                      'ping_status'    	=> 'closed',
                              );
                              wp_insert_post(add_magic_quotes($data));
                    }
  
                    update_option('show_on_front', 'page');
  
                    update_option('page_on_front', 3);
  
                    update_option('show_avatars', 0);
  
                    update_option('use_smilies', 0);
  
          restore_current_blog();
        
}
add_action('wpmu_new_blog', 'new_site_setup');

// My Gravity Forms signup form is currently pretty basic requiring just a name, email address, 
// site name and recurring payment amount.

// I would like to extend my signup form and include two additional select fields that enable the
// user to nominate a site language and starter theme.

// Gravity Forms would then pass the language and theme values to my new site creation function 
// and update the requisite database options.


update_option('WPLANG', $language);
  
update_option('current_theme', $theme_name);
  
update_option('template', $theme_slug);
  
update_option('stylesheet', $theme_slug);

// Please can someone suggest a Gravity Forms filter, function or technique that would enable me to 
// set site language and theme values after confirmation of a successful PayPal payment.

// I would also like the author of the default pages to be the new user rather than the super admin 
// as I have coded currently.

// Thank you.