一些好东东，may be useful （JpGraph，PHP to Excel aka BiffWriter，ADOdb，DomAPI）
JpGraph is a great OO class library written in PHP.
Author: Johan Persson
License: QPL 1.0 (free for non-commercial), JpGraph Professional License (for commercial or proprietary)
PHP to Excel aka BiffWriter
is a generic class to create Excel compatible streams or files from PHP. It enables web developers with the feature to deploy information "off-line" using the most common spread sheet format.
Author: Christian Novak
License: Version 2.1 was free for non-commercial use, but not otherwise. Check the website for accurate information.
Backup:Version 2.1 is mirrored on our server, and is known to work. fast server, slow server
A php db library that supports >20 rdbms. We prefer the db abstraction layer classes from blueshoes because of its features, but if you use a database that's not supported, here you go.
Author: John Lim
License: BSD-Style and LGPL (use it in proprietary and commercial products)
Author: Darin Kadrioski
License: Has changed recently, check the website.