<?php


include("session.php");
mysql_connect("localhost","project","222aripro") or die(mysql_error());
mysql_selectdb("upload") or die(mysql_error());

$quer1 = mysql_query("select subject from matrix group by subject") or die ("Invalid Access of matrix");
$total_subject = 1;
while ($row = mysql_fetch_array( $quer1 )) {
	//echo $total_subject.".";
	$subject[$total_subject] = $row['subject'];
	//echo "\n";
	$total_subject = $total_subject + 1;
}
?>
<table border = "1"> 
	<tr> <td> Subject 1 </td> <td> Subject 2 </td> <td> Count </td> <tr>
<?php

for ($i = 1; $i < $total_subject - 1; $i++) {
	for ($j = $i + 1; $j < $total_subject; $j++) {
		$quer1=mysql_query("SELECT DISTINCT * FROM (SELECT rollno,name from melectivesubmit WHERE fes = '$subject[$i]') as T INNER JOIN (SELECT rollno,name froM melectivesubmit WHERE fes = '$subject[$j]') as P  USING(rollno,name) union SELECT DISTINCT * FROM (SELECT rollno,name from ecelectivesubmit WHERE fes = '$subject[$i]') as T INNER JOIN (SELECT rollno,name froM ecelectivesubmit WHERE fes = '$subject[$j]') as P  USING(rollno,name) union SELECT DISTINCT * FROM (SELECT rollno,name from itelectivesubmit WHERE fes = '$subject[$i]') as T INNER JOIN (SELECT rollno,name froM itelectivesubmit WHERE fes = '$subject[$j]') as P  USING(rollno,name) union SELECT DISTINCT * FROM (SELECT rollno,name from delectivesubmit WHERE fes = '$subject[$i]') as T INNER JOIN (SELECT rollno,name froM delectivesubmit WHERE fes = '$subject[$j]') as P  USING(rollno,name)") or die("Invalid Access !!!");
		/*while ($row = mysql_fetch_array( $quer1 )) {
			echo $row['rollno'];
			echo " ";
			echo $row['name'];
			echo "\n";
		}
		if (($rowcount = mysql_num_rows($quer1)) != 0) {
			echo $subject[$i]."-".$subject[$j]."--".$rowcount."\n";

		}*/
			if (($rowcount = mysql_num_rows($quer1)) != 0) {
				echo "<tr> <td>". $subject[$i]."</td><td>".$subject[$j]."</td><td>".$rowcount."</td></tr>";

			}
	}
}
?>
</table>