ChartDirector http://www.advsofteng.com/cdphp.html GraPHPite http://graphpite.sourceforge.net/ JpGraph http://www.aditus.nu/jpgraph/ LibChart http://naku.dohcrew.com/libchart/pages/introduction/ pChart http://pchart.sourceforge.net/ TeeChart http://www.steema.com/products/teechart/overview.html PHPGraphLib http://www.ebrueggeman.com/phpgraphlib
