methods of class "rgraph_chart" provided by php-RGraph

"rgraph_chart" offers these main purposes for creating charts based on "RGraph":

1. support data creation and provisioning for RGraph charts
2. provide setter and getter methods for rgraph_chart objects
3. deliver data in json format to be used with RGraph

Usage of a rgraph_chart would contain therefore these structure:

1. provide the data for a chart (e.g. from a Joomla database):

    $db_config_file = $_SERVER["DOCUMENT_ROOT"] . "/configuration.php";
    $sql="Select title, hits From jos_content Order By hits Desc Limit 10";
    $data =  rgraph_chart::getDataFromDB ($dbconfig, $sql)
           

2. use the fetched data form database in the constructor:

    $chart =  new rgraph_chart ("cvs", $data[1], "Bar");
           

3. create an option (chart properties) object and define chart properies

    $options = new rgraph_options();
    $options->set_option("title", "Most Read Articles");
           ...  more options ...
           

4. set (define) the chart properties to rgraph_chart object:

    $chart->set_options($options);
           

5. create json object to be used with RGraph:

    $rgraph_json = $chart->toString();
           

To get more information besides references shown here, have a look at my samples or visit the home of RGraph.