我想根据数据库生成折线图。我第一次使用融合图表时,我按照融合图表文档中动态图表的程序进行操作。这是我的php页面代码:
<?php
include("Includes/FusionCharts.php");
include("Includes/DBconn.php");
?>
<html>
<title> Blood Pressure</title>
<head>
<script language="javascript" src="FusionCharts/FusionChart.js"></script>
</head>
<body>
<center>
<?php
//connect to the DB
$link= connectToDB();
//$strXML will be used to store the entire XML document generated
//Generate the graph element
$strXML = "<graph caption='Blood Pressure Reading' subCaption='By Patient'xaxisname='Months' yaxisname='Blood Pressure' hovercapbg='F5589A' hovercapborder='F5589A' rotateNames='1' yAxisMaxValue='200'>";
//Fetch records from database
$query= "select * from patient_health";
$result = mysql_query($query) or die(mysql_error());
echo $result;
//Iterate through each patient blood pressure systole
while($row= mysql_num_rows($result)){
//Generate the setname and value
// echo $row['Date'];
//echo $row['Systole_reading'];
$strXML.="<set name='".$row['Date']."'value='". $row['Systole_reading']."'/>";
mysql_free_result($result);
}
//Finally, close <graph> element
$strXML .= "</graph>";
//Create the chart - Pie 3D Chart with data from $strXML
echo renderChart("FusionCharts/FCF_Line.swf", "", $strXML, "BloodPressure", 650, 450);
?>
</center>
</body>
</html>
我收到错误消息:警告:mysql_num_rows(): 6 is not a valid MySQL result resource in C:\xampp\htdocs\phpfusion\ramfusion\Chart.php on line 28 Chart。任何人都可以在这方面帮助我,提前谢谢你,Ramsai