WP 2.7 Beta 3 – Custom Write Fields Producing Blank Page

Hi guys,

I’m playing around with 2.7 and it’s going great! I’ve come across a stumbling block though, in adding my own custom fields using add_meta_box.

It appears that 2.7 Beta 3 doesn’t want anything to do with it, as upon activating a plugin (or adding such a feature into my functions.php) the WordPress installation returns a blank page. Nothing else, just loads a blank page. So I assume there’s an error in there somewhere.

I’ve tried adding custom fields using this tutorial:
https://wefunction.com/2008/10/tutorial-creating-custom-write-panels-in-wordpress/

And when I thought that it might be because 2.7 uses some coding that somehow messes with old code like that, I used another tutorial specifically for 2.7:
https://www.techlyzer.com/2008/11/creating-click-drag-options-boxes-in-wp-27/

So I assume it’s something that’s messed up since going into BETA 3.

Any ideas?