Free reporting library for PHP without installation?

Is there a good (and hopefully free?) source library to use for PHP for creating and displaying reports? I would love one that would allow the user to view it in a nice format for saving and printing (like PDF?).

Also I would prefer one that is just files, not one that needs to be installed on the server itself as some of the people I create sites for are on shared server hosts.

Solution

Don't know if you would call this reporting but I have found these gems over the years:

http://pchart.sourceforge.net/
http://devzone.zend.com/article/4044-Dynamically-Generating-PDF-Files-with-PHP-and-Haru-
http://phppowerpoint.codeplex.com/
http://phpexcel.codeplex.com/
http://sourceforge.net/projects/phprtf/
http://www.phpconcept.net/pclzip/index.en.php
http://www.maani.us/charts4/
http://sourceforge.net/projects/tcpdf/
http://code.google.com/p/ofcgwt/w/list
http://sourceforge.net/projects/phpreports/ <-- Just found this

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