WP rewrites

gistfile1.php

// In functions.php:

// Get the existing Wordpress rewrite rules, usage: print_r(rv_get_rewrite_urls());
function rv_get_rewrite_urls() {  
  global $wp_rewrite;  
  return $wp_rewrite->wp_rewrite_rules();
}

// Flush rewrite rules, trigger on plugin activation
function rv_rewrite_flush() {
  global $wp_rewrite;
  $wp_rewrite->flush_rules();
}

// Add support for reading $_GET like URL variables, inspired by:
// http://youngdutchdesign.com/rewrite-multiple-get-variables-for-wordpress-plugins
function rv_newsletter_var($public_query_vars) {
  $public_query_vars[] = 'rv_urlvar';
  return $public_query_vars;
}

// Add a rewrite rule
// Used it here for /newsletter on a site, can be for anything!
function rv_rewrite_newsletter() {
  add_rewrite_rule('newsletter/([^/]+)/?$', 'index.php?pagename=newsletter&rv_urlvar=$matches[1]','top');
}


// Add support for $_GET like URI variables: (use /newsletter/yourvariable)
  //add_action('init', 'rv_rewrite_newsletter');
  //add_filter('query_vars', 'rv_newsletter_var');