pChart.net and jqPlot.com are two different libraries that allow you as a web developer create beautiful charts and graphs.
jqPlot is a javascript library that uses jQuery. jqPlot is great because it can pull data directly from multiple mediums such as csv, txt, json and so on. However it sucks because different charts may need different plugin files and you need to make sure the right script is included, but its still simple.
pChart is a PHP libray that uses its GD library. You may need to configure your php depending if this library is installed or not. pChart is a object oriented class that creates an image of a chart on the webpage. The webpage becomes an image which will not let you output any html. The only way you can link to the chart is by using <img> or <iframe> tag. Whats great is that you can create an image that can be save but what sucks is that you may not be able to use AJAX and it takes a huge load on your CPU.
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