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gr.php
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gr.php
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<?php
session_start();
if(isset($_SESSION['admin'])==false) {
$_SESSION['Login.Error']= "Admin login required";
header('Location: admin_log.php');
}
$con=mysqli_connect("localhost", "root", "","Elogbook")or die("cannot connect");
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$query = "SELECT count(*) from student";
$s = mysqli_query($con,$query);
$row = mysqli_fetch_array($s);
if ($row['count(*)']==0)
die("error");
$query = "Select count(*) from student where sem=1";
$s = mysqli_query($con,$query);
$row=mysqli_fetch_array($s);
$a1=$row['count(*)'];
$query = "Select count(*) from student where sem=3";
$s = mysqli_query($con,$query);
$row=mysqli_fetch_array($s);
$a2=$row['count(*)'];
$query = "Select count(*) from student where sem=5";
$s = mysqli_query($con,$query);
$row=mysqli_fetch_array($s);
$a3=$row['count(*)'];
$query = "Select count(*) from student where sem=7";
$s = mysqli_query($con,$query);
$row=mysqli_fetch_array($s);
$a4=$row['count(*)'];
$val = array($a1,$a2,$a3,$a4);
$grade=array("Sem1","Sem3","Sem5","Sem7");
/* CAT:Bar Chart */
/* pChart library inclusions */
include("pChart2.1.3/class/pData.class.php");
include("pChart2.1.3/class/pDraw.class.php");
include("pChart2.1.3/class/pImage.class.php");
/* Create and populate the pData object */
$MyData = new pData();
$MyData->addPoints($val,"Answers");
$MyData->setAxisName(0,"Number of Students");
$MyData->addPoints($grade,"Options");
$MyData->setAbscissa("Options");
/* Create the pChart object */
$myPicture = new pImage(1000,620,$MyData);
/* Write the chart title */
$myPicture->setFontProperties(array("FontName"=>"pChart2.1.3/fonts/calibri.ttf","FontSize"=>15));
$myPicture->drawText(375,34,"Semester wise attendance details",array("FontSize"=>20));
/* Define the default font */
$myPicture->setFontProperties(array("FontName"=>"pChart2.1.3/fonts/calibri.ttf","FontSize"=>14));
/* Set the graph area */
$myPicture->setGraphArea(100,100,980,600);
$myPicture->drawGradientArea(100,100,980,600,DIRECTION_HORIZONTAL,array("StartR"=>200,"StartG"=>200,"StartB"=>200,"EndR"=>240,"EndG"=>240,"EndB"=>240,"Alpha"=>30));
/* Draw the chart scale */
$scaleSettings = array("DrawXLines"=>TRUE, "Factors"=>array(2) , "Mode"=>SCALE_MODE_START0,"GridR"=>0,"GridG"=>0,"GridB"=>0,"GridAlpha"=>10,"Pos"=>SCALE_POS_TOPBOTTOM);
$myPicture->drawScale($scaleSettings);
/* Turn on shadow computing */
$myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));
/* Draw the chart */
$myPicture->drawBarChart(array("Rounded"=>TRUE,"Surrounding"=>30));
//pChart2.1.3/examples/pictures/example.drawBarChart.poll.png
/* Render the picture (choose the best way) */
$myPicture->autoOutput("pChart2.1.3/examples/pictures/example.drawBarChart.poll.png");
?>