Making HTTP requests in PHP is not difficult, and a variety of methods exists: using fopen(), using cURL extension, using file streams with fsockopen() and fwrite() for instance. The problem is: depending on server setup, this might or might not work on another server. The good new is: once again, WordPress has a no-brainer API that makes it dead easy…
Go to your blog admin area, head to the "Write" page, move your mouse over the "Add media" tiny icons: you probably had noticed it already, WordPress 2.5 comes with a neat tooltip function. Using it in your own plugins is so easy that a hamster could do it. First, in the HTML output of your plugin page, add a…
Adding javascript into an admin page is a critical part of plugin coding. Critical, because it is both trivial and probably reason #1 why it will conflict with other plugins if not done properly. When their plugin needs javascript, Good Plugin Coders™ have to make sure of the following points: add javascript only once: if you need prototype.js, don't add…
To add custom content to the "Write" admin pages (where you write posts, pages or links), WordPress 2.5 introduces a new function set: add_meta_box() Simple plugin example : The catch here is to hook the function that add our "meta box" (here: add_some_box()) late enough so that the function it needs, add_meta_box(), has been defined. Hooking on 'admin_menu' is fine.…
This will display the time and title for all your posts. This could result in a very long page, and a more usable way of doing it would be to change the posts_per_page parameter, and add Next and Previous links to navigate the whole list. Code snippet by Otto in the wp-hackers mailing list.
I'm a reader of the wp-hackers mailing list. Besides some fairly useless and unproductive advocacy or opinion threads happening on an annoyingly regular basis, the list is also a very great place to share code tips and snippets. Someone asks a "how do I do this" question, and someone else (sometimes) comes up with a smarter, simpler or shorter solution…