Coming in late to this party, but here’s the “WordPress” way: use plugin_dir_path( __FILE__ ), e.g.: <?php include( plugin_dir_path( __FILE__ ) . ‘ipn/paypal-ipn.php’); ?> Note that the function does return the trailing slash for the filepath.
Okay, I’ve had two big projects where I’ve been in control of the server enough to namespace and rely on autoloading. First up. Autoloading is awesome. Not worrying about requires is a relatively good thing. Here’s a loader I’ve been using on a few projects. Checks to make sure the class is in the current … Read more
You can make the ‘slug’ for the submenu page equal that of the top level page, and they’ll point to the same place: add_action(‘admin_menu’, ‘my_menu_pages’); function my_menu_pages(){ add_menu_page(‘My Page Title’, ‘My Menu Title’, ‘manage_options’, ‘my-menu’, ‘my_menu_output’ ); add_submenu_page(‘my-menu’, ‘Submenu Page Title’, ‘Whatever You Want’, ‘manage_options’, ‘my-menu’ ); add_submenu_page(‘my-menu’, ‘Submenu Page Title2’, ‘Whatever You Want2’, ‘manage_options’, … Read more
Use Actions and Filters If you think people would like to add or alter some data: provide apply_filters() before returning. P.S. One thing I find a bit disappointing and that your question addresses is the percentage of plugins that are designed only for end-users, i.e. that have no hooks of their own. Imagine if WordPress … Read more