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Lifecycle Events using PHP

Events are signals that let you execute specific actions—such as sending data to the server, and so on—using JavaScript, in response to any interactions/updates for a chart. FusionCharts Suite XT includes advanced features that let you add more context to your chart and make data visualization simpler. These features include chart updates, and events.

The sample in this article lists the basic lifestyle events at the time of rendering the chart using FusionCharts PHP wrapper.

A chart is shown below:

FusionCharts will load here..
{
    "chart": {
        "caption": "Countries With Most Oil Reserves [2017-18]",
        "subCaption": "In MMbbl = One Million barrels",
        "xAxisName": "Country",
        "yAxisName": "Reserves (MMbbl)",
        "numberSuffix": "K",
        "theme": "fusion"
    },
    "data": [
        {
            "label": "Venezuela",
            "value": "290"
        },
        {
            "label": "Saudi",
            "value": "260"
        },
        {
            "label": "Canada",
            "value": "180"
        },
        {
            "label": "Iran",
            "value": "140"
        },
        {
            "label": "Russia",
            "value": "115"
        },
        {
            "label": "UAE",
            "value": "100"
        },
        {
            "label": "US",
            "value": "30"
        },
        {
            "label": "China",
            "value": "30"
        }
    ]
}

The full code of the above sample is given below:

<!DOCTYPE html>
<?php
    /* Include the `../src/fusioncharts.php` file that contains functions to embed the charts.*/
    include("../includes/fusioncharts.php");
?>
<html>

<head>
    <title>FusionCharts | Export Chart As Image (client-side)</title>
    <!-- FusionCharts Library -->
    <script type="text/javascript" src="//cdn.fusioncharts.com/fusioncharts/latest/fusioncharts.js"></script>
    <script type="text/javascript" src="//cdn.fusioncharts.com/fusioncharts/latest/themes/fusioncharts.theme.fusion.js"></script>
    <script>
        function onDataLoaded() {
            document.getElementById("dataLoaded").innerHTML = "Chart Data is Loaded Succesfully";
        }
    </script>
</head>

<body>
    <?php
        $chartData ="{  
            \"chart\":
             {  
                \"caption\": \"Countries With Most Oil Reserves [2017-18]\",
                \"subCaption\": \"In MMbbl = One Million barrels\",
                \"xAxisName\": \"Country\",
                \"yAxisName\": \"Reserves (MMbbl)\",
                \"numberSuffix\": \"K\",
                \"theme\": \"fusion\"
             },
             \"data\": [{
                \"label\": \"Venezuela\",
                \"value\": \"290\"
            }, {
                \"label\": \"Saudi\",
                \"value\": \"260\"
            }, {
                \"label\": \"Canada\",
                \"value\": \"180\"
            }, {
                \"label\": \"Iran\",
                \"value\": \"140\"
            }, {
                \"label\": \"Russia\",
                \"value\": \"115\"
            }, {
                \"label\": \"UAE\",
                \"value\": \"100\"
            }, {
                \"label\": \"US\",
                \"value\": \"30\"
            }, {
                \"label\": \"China\",
                \"value\": \"30\"
            }]
       }";
        // chart object
        $Chart = new FusionCharts("column2d", "chart-1" , "600", "400", "chart-container", "json", $chartData);
        # Attach event with method name
        $Chart->addEvent("dataLoaded", "onDataLoaded");
        // Render the chart
        $Chart->render();
?>
    <h3>Example of event(product life cycle event)</h3>
    <div id="chart-container">Chart will render here!</div>
    <br />
    <br />
    <div>
        <p id="dataLoaded"></p>
    </div>
    <br />
</body>
</html>

The above chart has been rendered using the following steps:

  1. Include the fusioncharts.php file which contains functions to embed the charts.

  2. Include the necessary libraries and components using <script> tags. For example, fusioncharts.js, fusioncharts.theme.fusion.js.

  3. Add event dataLoaded which will be called when the data of the chart is loaded.

  4. Store the chart data in a JSON object.

  5. Store the chart configuration in a JSON object. In the JSON object:

    • Set the chart type as column2d. Find the complete list of chart types with their respective alias here.
    • Set the width and height of the chart in pixels.
    • Set the dataFormat as JSON.
    • Embed the json data as the value of dataSource.

  6. Create the <div> element to render the chart.