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 […]

What Really Makes a Password Strong?

Bob Yexley turned me on to passphrases a few years ago when he linked to what became a seminal article on the topic by Robert Hensing. The argument is that passphrases — random words strung together to form a phrase, e.g., monkey stars hatchback questioning — are both more secure and easier to remember than what are […]

Don’t Force Links to Open in New Windows

Sven Lennartz has a good post at Smashing Magazine detailing why links shouldn’t be targeted to open in new windows. This is a big pet peeve of mine because it takes control away from the user. Insecure site owners force it on their users, thinking it will keep people on the site longer, but the correct […]

Uploading Files with Custom Post Types

If you’re building a custom post type and want to let the user upload files, you’ll need to add enctype=”multipart/form-data” to the form tag, using the post_edit_form_tag filter. Otherwise the $_FILES array will be empty.

Creating Custom Post Types With Extra Fields

Richard Shepherd’s post on creating custom post types in WordPress is the first good example I’ve found that covers adding extra data fields.

Ian Dunn

WordPress Developer

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

What Really Makes a Password Strong?

Don’t Force Links to Open in New Windows

Uploading Files with Custom Post Types

Creating Custom Post Types With Extra Fields