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<td><h2 class="pageHeader">Using FusionCharts PHP Class > Charting Data from Forms </h2></td>
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<td valign="top" class="text"><p>In this section, we'll show you how to use FusionCharts PHP class functions to plot data collected in forms. </p>
<p>We'll build a simple restaurant sales example, where the user will enter the items sold by a restaurant in a given week. This data will be submitted in a form to the server. We'll acquire this data and plot it on a chart. For the sake of simplicity, we wouldn't do any processing on this data. However, your real life applications might require data validation or processing before presenting it on the chart. </p>
<p><strong>Before you go further with this page, we recommend you to please see the previous section "Basic Examples" as we start off from concepts explained in that page. </strong></p></td>
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<td valign="top" class="highlightBlock">The code examples contained in this page are present in<span class="codeInline"> Download Package > Code > PHPClass</span> > <span class="codeInline">FormBased</span> folder. </td>
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<td valign="top" class="text"> </td>
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<td valign="top" class="header">Building the Form </td>
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<td valign="top" class="text">The form is contained in <span class="codeInline">Default.php</span> and looks as under: </td>
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<td valign="top" class="text"><img src="Images/Code_Form.gif" class="imageBorder" /></td>
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<td valign="top" class="text">It's a very simple form which submits to <span class="codeInline">Chart.php</span>. As such, we wouldn't go into the code of this form. You can directly open the source from download and see it. </td>
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<td valign="top" class="text"> </td>
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<td valign="top" class="header">Requesting the data and Creating the Chart </td>
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<td valign="top" class="text">The work of requesting the data from submitted form and creating the chart is done in <span class="codeInline">Chart.php</span>, present in the same folder. It contains the following code: </td>
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<td valign="top" class="codeBlock"><p><?php<br />
<span class="codeComment"> //We've included ../Includes/FusionCharts_Gen.php, which contains FusionCharts PHP Class<br />
//to help us easily embed the charts.</span><br />
<span class="codeComment"> </span>include("../Includes/FusionCharts_Gen.php");<br />
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<span class="codeComment"> </span><TITLE><br />
<span class="codeComment"> </span><span class="codeComment"> </span>FusionCharts Free - Form Based Data Charting Example<br />
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<?php<br />
<span class="codeComment"> //You need to include the following JS file, if you intend to embed the chart using JavaScript.<br />
//Embedding using JavaScripts avoids the "Click to Activate..." issue in Internet Explorer<br />
//When you make your own charts, make sure that the path to this JS file is correct. <br />
//Else, you would get JavaScript errors.</span><br />
?> <br />
<span class="codeComment"> </span><SCRIPT LANGUAGE="Javascript" SRC="../../FusionCharts/FusionCharts.js"></SCRIPT><br />
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<h4>Restaurant Sales Chart below</h4><br />
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<?php<br />
<span class="codeComment"> //We first request the data from the form (Default.php)</span><br />
<span class="codeComment"> </span>$intSoups = $_REQUEST['Soups'];<br />
<span class="codeComment"> </span>$intSalads = $_REQUEST['Salads'];<br />
<span class="codeComment"> </span>$intSandwiches = $_REQUEST['Sandwiches'];<br />
<span class="codeComment"> </span>$intBeverages = $_REQUEST['Beverages'];<br />
<span class="codeComment"> </span>$intDesserts = $_REQUEST['Desserts'];<br />
<span class="codeComment"> //In this example, we're directly showing this data back on chart.<br />
//In your apps, you can do the required processing and then show the <br />
//relevant data only.<br />
<br />
//Now that we've the data in variables, we need to convert this into chart data using<br />
//FusionCharts PHP Class<br />
<br />
# Create Pie 3D chart object </span><br />
<span class="codeComment"> </span>$FC = new FusionCharts("Pie3D","600","300"); </p>
<p> <span class="codeComment"> # Set Relative Path of chart swf file</span><br />
<span class="codeComment"> </span>$FC->setSwfPath("../../FusionCharts/");<br />
<br />
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<span class="codeComment"> //Store Chart attributes in a variable</span><br />
<span class="codeComment"> </span>$strParam="caption=Sales by Product Category;subCaption=For this week;showPercentValues=1; showPercentageInLabel=1;pieSliceDepth=25;showBorder=1;decimalPrecision=0;showNames=1";</p>
<p> <span class="codeComment"> # Set chart attributes</span><br />
<span class="codeComment"> </span>$FC->setChartParams($strParam);<br />
<br />
<span class="codeComment"> //Add all data</span><br />
<span class="codeComment"> </span>$FC->addChartData($intSoups,"name=Soups");<br />
<span class="codeComment"> </span>$FC->addChartData($intSalads,"name=Salads");<br />
<span class="codeComment"> </span>$FC->addChartData($intSandwiches,"name=Sandwitches");<br />
<span class="codeComment"> </span>$FC->addChartData($intBeverages,"name=Beverages");<br />
<span class="codeComment"> </span>$FC->addChartData($intDesserts,"name=Desserts");<br />
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<span class="codeComment"> //Create the chart </span><br />
<span class="codeComment"> </span>$FC->renderChart();<br />
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<td valign="top" class="text">As you can see in the above code, we're doing the following:</td>
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<ul>
<li>Including <span class="codeInline">FusionCharts_Gen.php</span> and<span class="codeInline"> FusionCharts.js</span> in this page. </li>
<li>Requesting data from the form in <span class="codeInline">Default.php</span> and storing the values in local variables</li>
<li>Creating an instance of FusionCharts PHP class for a Pie 3D chart with 600 pixels width, 300 pixels height</li>
<li>Setting relative path of chart SWF file using <span class="codeInline">setSWFPath()</span> function</li>
<li>Storing chart attributes in <span class="codeInline">$strParam</span> variable</li>
<li>Setting chart attributes using <span class="codeInline">setChartParams()</span> function</li>
<li>Adding chart data with <span class="codeInline">addChartData()</span> function</li>
<li>Finally, rendering the chart using <span class="codeInline">renderChart()</span> function </li>
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<td valign="top" class="highlightBlock">Please go through <a href="PHPClassAPI/Functions.html">FusionCharts PHP Class API Reference</a> section to know more about the functions used in the above code. </td>
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<td valign="top" class="text"> </td>
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<td valign="top" class="text">When you finally run the code, you'll see a chart as under: </td>
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<td valign="top" class="text"><img src="Images/Code_FormChart.jpg" class="imageBorder" /></td>
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