The Scalable Vector Graphics (SVG) specification provides a way to programmatically generate images using vector paths expressed in XML. This makes it ideal for generating images that need to be scaled to different resolutions without losing fidelity.
A common requirement in Web applications is to dynamically generate charts and graphs from numerical data. If these graphs are expressed using SVG, they can be blown up to different sizes without any deterioration in quality, and they are also typically smaller in size as compared to their GIF or JPEG counterparts. With this in mind, this article examines various open source PHP libraries that allow you to add SVG charting capabilities to your PHP application.
