If you're coding in PHP a lot, PHPXref is one of the coolest tools available. It allows you to browse large portions of source code, and find where functions, variables and constants are defined and referenced.
As the PHPXref of WordPress I used to use isn't available anymore, I decided a couple of weeks ago to build my own, which you can find at xref.yoast.com.
I've made a video of how to use it, as it might not be so obvious at first sight:
If you think you'd like to use it but have questions left, feel free to ask, of course!






PHPXref is an awesome tool. I use it all the time for WordPress, finding those functions which I can never remember.
Yeah I love it too, can't live without it anymore. I hope to have something cool for the PHP Xref & WordPress lovers soon, keep watching this space :)
Wow, fantastically useful, thanks.
I always used this one: http://lab.yukei.net/wp-code/nav.html?index.html. But I'll keep an eye out on yours as well now :-)
I'm still skeptical that anything can help decipher the spaghetti that is wordpress ;)
This helps, a lot :)
Does xref.yoast.com provide any advantages over the "official" WordPress PHPXref?
Yes, it has not only WP 2.7 but also other versions, and the "trunk" development version, which is updated every 30 minutes. Also, I've just added a simple search page, that should make searching through the code a whole lot easier.
Awesome!
Thanks for the work you put into this.
This is great! Thanks for all of the info.
fantastic! what about 2.8, coming soon?