一些好东东，may be useful （JpGraph，PHP to Excel aka BiffWriter，ADOdb，DomAPI）

JpGraph

JpGraph is a great OO class library written in PHP.
Website: http://www.aditus.nu/jpgraph/
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.
Website: http://www.cnovak.com/
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



ADOdb

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.
Website: http://php.weblogs.com/ADODB.
Author: John Lim
License: BSD-Style and LGPL (use it in proprietary and commercial products)




DomAPI

DomAPI is a clientside application-centric development environment written in javascript, targeted at version 5.0 or better browsers running on Windows, MacOS and Linux.
Website: http://www.domapi.com/.
Author: Darin Kadrioski
License: Has changed recently, check the website.
=============================================================
强烈推荐！！