";
                }
                // ------------------------------Editing Lab Assignment by Lecturer ------------------------------------
                if ($_GET['act'] == "edit") {
                    $getid = $_GET["cid"];
                    $result1 = mysqli_query($con, "SELECT * from lab_reports_table WHERE Lab_Report_ID = '$getid'");
                    while ($row1 = mysqli_fetch_assoc($result1)) {
                        $Deadline = $row1['Deadline'];
                        $_SESSION['Date'] = trim(strstr($Deadline, ' ', true));
                        $_SESSION['Time'] = trim(strstr($Deadline, ' '));
                        $_SESSION['Instructions'] = $row1['Instructions'];
                        $_SESSION['Title'] = $row1['Title'];
                        $_SESSION['Marks'] = $row1['Marks'];
                        $_SESSION['Type'] = $row1['Type'];
                    }
                    if (isset($_POST['frm_uploadlab'])) {
                        $deadlinedate = trim($_POST["deadlinedate"]); // remove spaces
                        $deadlinetime = trim($_POST["deadlinetime"]); // remove spaces
                        $instructions = $_POST["instructions"];
                        $title = $_POST["title"];
                        $marks = $_POST["marks"];
                        $type  = $_POST["type"];
                        $Deadline = $deadlinedate . " " . $deadlinetime;
                        $date =  date("Y-m-d H:i");
                        $sql = "UPDATE `lab_reports_table` SET `Deadline` = ('" . $Deadline . "'), `Instructions` = ('" . $instructions . "'), `Title` = ('" . $title . "'), `Marks` = ('" . $marks . "'), `Type` = ('" . $type . "') WHERE `lab_reports_table`.`Lab_Report_ID` = '$getid'";
                        if ($con->query($sql) === TRUE) {
                            $_SESSION["info_Updated"] = "Assignment information updated successfully.";
                        } else {
                            // echo "Error: " . $sql . "
" . $con->error;
                            echo "Serious error happened whiling updating assignment information.";
                        }
                    }
                    if ($_SESSION['user_type'] == "Lecturer") {
                        $Date = $_SESSION['Date'];
                        $Time = $_SESSION['Time'];
                        $Instructions = $_SESSION['Instructions'];
                        $Title = $_SESSION['Title'];
                        $Marks = $_SESSION['Marks'];
                        $Type = $_SESSION['Type'];
                        echo "  
";
        ?>
                        
                    
                         Post new Lab Assignment 
                        
        ";
            echo "
   Lab Report Assignment list 
";
            error_reporting(0);
            if (isset($_SESSION["info_Updated"])) {
                echo '
' . $_SESSION['info_Updated'] . '
';
                $_SESSION['info_Updated'] = null;
            }
            if (isset($_SESSION['info_courses'])) {
                echo '
' . $_SESSION['info_courses'] . '
';
                $_SESSION['info_courses'] = null;
            }
            if (isset($_SESSION['info_courses'])) {
                echo '
' . $_SESSION['info_courses'] . '
';
                $_SESSION['info_courses'] = null;
            }
            $result = mysqli_query($con, " SELECT `Lab_Report_ID`,Type,Marks, `Course_ID`, `Posted_Date`, `Deadline`, `Instructions`, `Title`, `Attachment_link_1`, `Attachment_link_2`, `Attachment_link_3`, "
                . "`Attachment_link_4` FROM `lab_reports_table` WHERE Course_ID=$id ORDER by Lab_Report_ID DESC");
            if ($_SESSION['user_type'] == "TA") {
                echo "
*Only Lecturer can post a new lab report assignment";
            }
            if (mysqli_num_rows($result) == 0) {
                echo "No assignments posted so far.";
            } else {
                while ($row = mysqli_fetch_assoc($result)) {
                    $marks = $row['Marks'];
                    $title = $row['Title'];
                    $ins = $row['Instructions'];
                    $posted = $row['Posted_Date'];
                    $deadline = $row['Deadline'];
                    $att1 = $row['Attachment_link_1'];
                    $att2 = $row['Attachment_link_2'];
                    $att3 = $row['Attachment_link_3'];
                    $att4 = $row['Attachment_link_4'];
                    $id = $row['Lab_Report_ID'];
                    $cours_id = $row['Course_ID'];
                    $as_type = $row['Type'];
                    $full_link = "
$att1";
                    if ($att2 != "") {
                        $full_link = $full_link . "  |  
$att2";
                    }
                    if ($att3 != "") {
                        $full_link = $full_link . "  |  
$att3";
                    }
                    if ($att4 != "") {
                        $full_link = $full_link . "   |   
$att4";
                    }
                    $resultx1 = mysqli_query($con, "Select Count(*) as cnt from lab_report_submissions where lab_report_submissions.Lab_Report_ID=$id");
                    while ($row = mysqli_fetch_assoc($resultx1)) {
                        $count_subs = $row['cnt'];
                    }
                    $resultx2 = mysqli_query($con, "Select COUNT(*) as cnt from lab_report_submissions where lab_report_submissions.Lab_Report_ID=$id and Marks is not null");
                    if (mysqli_num_rows($resultx2) == 0) {
                        $count_marked = 0;
                    } else {
                        while ($row = mysqli_fetch_assoc($resultx2)) {
                            $count_marked = $row['cnt'];
                        }
                    }
                    $header = "Courses > " . $name . "($code) > Assignments > " . $title;
                    echo "      
  $title ($as_type) 
 $ins
  
    
Posted : $posted  Deadline :   $deadline    ($marks Marks)                     "
                        . "
"
                        . "    $count_subs Submissions ( $count_marked Marked )       Edit   |   View         |            Extend Deadline            
 Attachments : $full_link "
                        . "  
                        ";
                }
            }
            echo "
 ";
            $resultx1 = mysqli_query($con, "SELECT course_students_table.Student_ID,users_table.Full_Name FROM 
`course_students_table`
INNER JOIN users_table on users_table.Student_ID=course_students_table.Student_ID
WHERE Course_ID=$course_id");
            echo "
 
Reason "
                . ""
                . " ";
            return;
        }
        ?>
        
 ";
            $result = mysqli_query($con, "SELECT `Course_ID`, `Course_Name`, `Academic_Year`, `Faculty`, "
                . "`Lecturer_User_ID`, `TA_User_ID`, `Course_Code`, `URL`, `Verify_New_Members`   , users_table.Full_Name  FROM `courses_table` INNER JOIN users_table ON users_table.User_ID=courses_table.Lecturer_User_ID where courses_table.Lecturer_User_ID=$user_d");
            if ($_SESSION['user_type'] == "TA") {
                $result = mysqli_query($con, "SELECT course_ta.Course_ID, `Course_Name`, 
          `Academic_Year`, `Faculty`, `Lecturer_User_ID`, `TA_User_ID`, `Course_Code`, `URL`, `Verify_New_Members`   FROM `courses_table` 
INNER JOIN 
course_ta ON course_ta.Course_ID=courses_table.Course_ID where course_ta.TA=$user_d");
            }
            // $result = mysqli_query($con,"SELECT `Course_ID`, `Course_Name`, `Academic_Year`, `Faculty`, `Lecturer_User_ID`, `TA_User_ID`, `Course_Code`, `URL`, `Verify_New_Members`   , users_table.Full_Name  FROM `courses_table` INNER JOIN users_table ON users_table.User_ID=courses_table.Lecturer_User_ID");
            if (mysqli_num_rows($result) == 0) {
            } else {
                while ($row = mysqli_fetch_assoc($result)) {
                    $id = $row['Course_ID'];
                    $name = $row['Course_Name'];
                    $code = $row['Course_Code'];
                    $faculty = $row['Faculty'];
                    $lecturer = $row['Full_Name'];
                    $academic = $row['Academic_Year'];
                    $url = $row['URL'];
                    $resultTA = mysqli_query($con, "SELECT `Course_ID`, `TA`,users_table.Full_Name as TA_NAME FROM `course_ta`
INNER JOIN users_table on users_table.User_ID=course_ta.TA
where course_ta.Course_ID=$id");
                    $ta = "";
                    while ($rowTA = mysqli_fetch_assoc($resultTA)) {
                        $ta = $ta . "  - " . $rowTA['TA_NAME'];
                    }
                    echo "  
                  
                         
   
  ($code) - $name 
   
 Faculty : $faculty        Year :  $academic          Lecturer  :$lecturer          TA:$ta 
                        ";
                }
            } ?>
        
            
             Search Results for Course Code $search
";
                    $result = mysqli_query($con, "SELECT `Course_ID`, `Course_Name`, `Academic_Year`, `Faculty`,"
                        . " `Lecturer_User_ID`, `TA_User_ID`, `Course_Code`, `URL`, `Verify_New_Members`  "
                        . " , users_table.Full_Name  FROM `courses_table` INNER JOIN users_table"
                        . " ON users_table.User_ID=courses_table.Lecturer_User_ID where Course_Code like '%{$search}%' and courses_table.Course_ID not in (select course_id from course_students_table where Student_ID=$student_id)");
                } else {
                    echo "
 Find Courses under faculty $faculty
";
                    $result = mysqli_query($con, "SELECT `Course_ID`, `Course_Name`, `Academic_Year`, `Faculty`,
       `Lecturer_User_ID`, `TA_User_ID`, `Course_Code`, `URL`, `Verify_New_Members` 
         , users_table.Full_Name  FROM `courses_table` INNER JOIN users_table
         ON users_table.User_ID=courses_table.Lecturer_User_ID where Faculty='$faculty'  and courses_table.Course_ID not in (select course_id from course_students_table where Student_ID=$student_id)");
                }
                if (mysqli_num_rows($result) == 0) {
                    echo "No results found for your Search 
";
                } else {
                    while ($row = mysqli_fetch_assoc($result)) {
                        $name = $row['Course_Name'];
                        $code = $row['Course_Code'];
                        $faculty = $row['Faculty'];
                        $lecturer = $row['Full_Name'];
                        $academic = $row['Academic_Year'];
                        $url = $row['URL'];
                        $id = $row['Course_ID'];
                        $v = $row['Verify_New_Members'];
                        $msg2 = "Join Course";
                        if ($v > 0) {
                            $msg = "
 Lecturer verification required";
                            $msg2 = "Send Joining Request";
                        }
                        echo "
  [$code] $name 
($url)   
 $msg2 
    Faculty: $faculty | Year: $academic | Lecturer: $lecturer $msg
                        ";
                    }
                }
            }
            echo "
 My Courses 
";
            $result = mysqli_query($con, "SELECT users_table.Full_Name, course_students_table.Status, courses_table.Course_ID, `Course_Name`, `Academic_Year`, `Faculty`, `Lecturer_User_ID`, `TA_User_ID`, `Course_Code`, `URL`, `Verify_New_Members` FROM `courses_table`
INNER JOIN users_table
          ON users_table.User_ID=courses_table.Lecturer_User_ID
INNER JOIN course_students_table on course_students_table.Course_ID=courses_table.Course_ID
                  where course_students_table.Student_ID=$student_id");
            if (mysqli_num_rows($result) == 0) {
                echo "
 You are not Enrolled in any Course";
            } else {
                while ($row = mysqli_fetch_assoc($result)) {
                    $name = $row['Course_Name'];
                    $code = $row['Course_Code'];
                    $faculty = $row['Faculty'];
                    $lecturer = $row['Full_Name'];
                    $academic = $row['Academic_Year'];
                    $url = $row['URL'];
                    $id = $row['Course_ID'];
                    $Status = $row['Status'];
                    if ($Status == "Joined") {
                        echo "
   
  ($code) - $name 
($url)           
 $Status        
 Open
    Faculty : $faculty  Year :   $academic  Lecturer  :$lecturer 
                        ";
                    } else {
                        echo "
  ($code) - $name   $Status
   
 Faculty : $faculty  Year :   $academic  Lecturer  :$lecturer 
                        ";
                    }
                }
            }
            echo "