WordPress: Check if user role exists

As part of a recent Sensei update we added some custom capabilities to the editor role, but we discovered that some people have deleted that role from the database as a way of cleaning up unused data on their sites. This meant that our add_cap() calls were causing fatal errors for these sites. Here’s how we solved this problem for ourselves.

Introducing: Code Snippet Library

Sharing code snippets is a common need for sites like mine. Whether you run a full tutorial site, or a blog on which you occasionally post code tutorials, you’ll need some way of managing your snippets. My solution for this need is Code Snippet Library.

Storing snippets in Gist

I’ve been using Gist for a while, but only as a way to quickly share snippets of code with people. I’ve now decided to change that a bit and make better use of the service – as a result I have added all my snippets from this blog to my Gists and I will continue to add even the smallest snippets as I develop them.

Easily generate a month select box in PHP

Having a drop down menu for month selection is a relatively common need, but it can be a pain to write from scratch each time. Here’s a short snippet that will generate a select input (drop down menu) for all 12 months of the year – the option values will be the month numbers with leading zeros.