Blog

To check for multiple custom fields you have to join the meta table twice. more

Run some code when a new blog is created. I'm not sure, but I guess this code has to be in a network-activated or mu-plugins plugin. Maybe having this code enabled in the blog you're using will suffice. more

This snippet shows how you can add metadata to your existing custom taxonomy. So you can use updatemetadata() and getmetadata() on your taxonomy. The filter on switchblog is only necessary if the code runs on a blog network (recommended to implement anyway). The name of the database table is very … more

Build a custom WordPress query and order the posts however you want them. Notice that this won't work properly if you page results, so it is only useful in very specific cases. Btw, wrap everything into your class and get rid o the global var when you use this ;-) more

How to minify WordPress theme stylesheets properly

2010-11-08

If you build WordPress theme you'll eventually come to the point where you want to minify the stylesheets. But the WordPress theming system has a fundamental flaw: It expects theme headers like name, version information etc. to be in the style.css. This is bad because removing the headers from the … more

Show the user a useful search form when on a 404 page. Turn the query string into a search. more

A Better Related Posts Plugin

2010-10-31

There are many plugins that find related posts for WordPress, and I was happy to use one of them in the past. However, WordPress evolves. One of the biggest change was the addition of custom post types. They are very useful and I use them a lot for my own … more

Extract HTML with PHP’s DOM extension

2010-10-22

I recently had to parse HTML with PHP and had a look at PHP's DOM at last. Here's a way to extract an element's content by ID: <?php /** * Extract an element by ID from an HTML document * Thanks http://codjng.blogspot.com/2009/10/unicode-problem-when-using-domdocument.html * * @param string $content A website * … more

Better Recent Posts Widget

2010-10-17

The built-in recent posts widget in WordPress isn't too bad, but it doesn't support custom post types. That's why I wrote this new widget. You can choose any custom post types you want. This way you can always get a list of recent updates on your blog. The widget ignores … more

WordPress Pastebin

2010-10-16

This plugin is for you if you like sharing your code. Turn your blog into a pastebin and keep your own code on your own site. You can tag your pastes like you tag your normal posts, and visitors can leave comments if you allow it. I wrote this because … more

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