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WordPress PHPXref – PHP Cross Reference
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 WordPress PHPXref, 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!






by Train Pictures on 24 January, 2009 at 14:52
PHPXref is an awesome tool. I use it all the time for WordPress, finding those functions which I can never remember.
by Joost de Valk on 24 January, 2009 at 18:07
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 :)
by donnacha | WordSkill on 24 January, 2009 at 20:00
Wow, fantastically useful, thanks.
by Walter Vos on 24 January, 2009 at 22:12
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 :-)
by david on 25 January, 2009 at 17:31
I'm still skeptical that anything can help decipher the spaghetti that is wordpress ;)
by Joost de Valk on 25 January, 2009 at 23:01
This helps, a lot :)
by John on 25 January, 2009 at 22:51
Does xref.yoast.com provide any advantages over the "official" WordPress PHPXref?
by Joost de Valk on 25 January, 2009 at 22:57
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.
by John on 25 January, 2009 at 23:06
Awesome!
Thanks for the work you put into this.
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by Levi on 29 January, 2009 at 04:50
This is great! Thanks for all of the info.
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by fayssal on 7 July, 2009 at 19:20
fantastic! what about 2.8, coming soon?