Conditionally Loading JavaScript and CSS in WordPress Plugins

Update 1/2/2013: As of WordPress 3.3, it’s now possible to call wp_enqueue_script() directly inside a shortcode callback, and the JavaScript file will be called within the document’s footer. That’s technically possible for CSS files as well, but should be considered a bad practice because outputting CSS outside the <head> tag violates W3C specs, can case FOUC, and may […]

The Necessity of Contracts

Mike Monteiro and Gabe Levine gave a great presentation for Creative Mornings on the necessity of contracts when doing client work. I never really liked using them because 95% of projects go smoothly and it seems kind of impersonal, but after a recent experience and talking to other developers, I’m beginning to see the need for them, and […]

Updating Packages in an OpenVZ VPS

Sam Mingolelli has posted some useful solutions to common problems when running yum update inside an OpenVZ VE.

Basic Google Maps Placemarks Plugin

I wrote a new WordPress plugin for a side project and just released it into the repository. It creates a custom post type for markers and then inserts them into an embedded Google Map, using the post’s featured image as the map icon.

Note: all support requests should be posted to the support forums.

Custom Post Type Fields Overwritten

The past few days I’ve run up against a weird bug in a plugin I’m writing, where the custom post type fields would be overwritten with empty values randomly. Creating or editing a post would save the values fine, but I’d come back 5 minutes later and they’d be empty. I finally got it sorted, […]

Parse Error When Installing WordPress 3.2 on a PHP4 Server

This is the error you’ll get if you try to install WordPress 3.2 on a PHP4 server:

Parse error: parse error, unexpected T_VARIABLE in /path/to/your/directory/wp-includes/load.php on line 566

It’s because the clone keyword doesn’t exist in PHP4.

admin-ajax.php Response Fails When Called from Domain Alias

I’m writing a WordPress plugin that uses AJAX and I had everything setup and working fine for awhile. I came back to the code a few hours later and all of the sudden I was getting a failed response, even though the code hadn’t changed. I got the correct JSON response when I loaded the […]

Ian Dunn

WordPress Developer

Conditionally Loading JavaScript and CSS in WordPress Plugins

The Necessity of Contracts

Updating Packages in an OpenVZ VPS

Basic Google Maps Placemarks Plugin

Custom Post Type Fields Overwritten

Parse Error When Installing WordPress 3.2 on a PHP4 Server

admin-ajax.php Response Fails When Called from Domain Alias