PanaChart is a PHP class for online charts creation using PHP scripting language and the GD image manipulation library. It makes it easy to plot several types of charts with less then 10 lines of code. PanaChart is suited for any scientific or business web application. The source code of the library is very compact and resides in a single file, which considerably reduces the load, parsing and execution time. The average size of a generated PNG image is less than 2 KB and the average creation time is 20 milliseconds. All these features makes PanaChart suitable for realtime graphic charts production. See the online demo or the examples page. Panachart requires PHP 4 scripting engine with GD 2 image library support enabled. - Bandwidth friendly, the average image size for a 450*250 image is around 2K - Small and fast library source code - Can be used to create plots with few lines of code - Can output to a file or directly to an HTTP stream - Supports several plot types: bars, lines, dots, areas, step, impuls - Supports multiple series plots on the same image - Supports automatic scaling of plot area by axis labels size