类似这样的事情可能会做到：

function wpse21372_init(){
  add_rewrite_rule( \'your-page-regex/?$\', \'index.php?wpse21372=1\', \'top\' );
  add_rewrite_tag( \'%wpse21372%\', \'([^&]+)\' );
}

add_action( \'wp\', \'wpse21372_wp\' );

function wpse21372_wp( $wp ){
  if( isset( $wp->query_vars[\'wpse21372\'] ) && !empty( $wp->query_vars[\'wpse21372\'] ) ){
    //You\'re on your custom page.
    //you may want to exit page
    //execution when you\'re done
    //so the rest of WordPress\'
    //normal execution doesn\'t take
    //over from here.
  }
}