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Dosya Düzenle: formgenx.php

<?php
include 'connect.php';

// FIX 1: Select only needed columns instead of SELECT * to reduce data transfer
$s = "SELECT `Name`, `FormNo`, `Course`, `Phone` FROM `StudentForms` WHERE `status` IS NULL";

$q = mysqli_query($con, $s);

// FIX 2: Check for query errors early
if (!$q) {
    die("Query failed: " . mysqli_error($con));
}
?>

<!DOCTYPE html>
<html lang="en">

<head>

<title>Admission Protal</title>

<link href="vendor/fontawesome-free/css/all.min.css" rel="stylesheet" type="text/css">

<link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Nunito:wght@200;300;400;600;700;800;900&display=swap" rel="stylesheet">

<link href="css/sb-admin-2.min.css" rel="stylesheet">

</head>

<div id="wrapper">

<?php  include ('menu.php');   ?>

<div id="content-wrapper" class="d-flex flex-column">

<div id="content">

<nav class="navbar navbar-expand navbar-light bg-white topbar mb-4 static-top shadow">

<button id="sidebarToggleTop" class="btn btn-link d-md-none rounded-circle mr-3">
                        <i class="fa fa-bars"></i>
                    </button>

<form
                        class="d-none d-sm-inline-block form-inline mr-auto ml-md-3 my-2 my-md-0 mw-100 navbar-search">
                        <div class="input-group">
                            <input type="text" class="form-control bg-light border-0 small" placeholder="Search for..."
                                aria-label="Form Search" aria-describedby="basic-addon2">
                            <div class="input-group-append">
                                <button class="btn btn-primary" type="button">
                                    <i class="fas fa-search fa-sm"></i>
                                </button>
                            </div>
                        </div>
                    </form>

<li class="nav-item dropdown no-arrow">
                            <a class="nav-link dropdown-toggle" href="#" id="userDropdown" role="button"
                                data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                                <span class="mr-2 d-none d-lg-inline text-gray-600 small">Mangaldai College</span>
                                <img class="img-profile rounded-circle"
                                    src="img/undraw_profile.svg">
                            </a>
                            
                            <div class="dropdown-menu dropdown-menu-right shadow animated--grow-in"
                                aria-labelledby="userDropdown">
                                <a class="dropdown-item" href="#">
                                    <i class="fas fa-user fa-sm fa-fw mr-2 text-gray-400"></i>
                                    Profile
                                </a>
                                <a class="dropdown-item" href="#">
                                    <i class="fas fa-cogs fa-sm fa-fw mr-2 text-gray-400"></i>
                                    Settings
                                </a>
                                <a class="dropdown-item" href="#">
                                    <i class="fas fa-list fa-sm fa-fw mr-2 text-gray-400"></i>
                                    Activity Log
                                </a>
                                <div class="dropdown-divider"></div>
                                <a class="dropdown-item" href="#" data-toggle="modal" data-target="#logoutModal">
                                    <i class="fas fa-sign-out-alt fa-sm fa-fw mr-2 text-gray-400"></i>
                                    Logout
                                </a>
                            </div>
                        </li>

</ul>

</nav>

<div class="container-fluid">

<div class="col-xl-12 col-lg-12">
                            <div class="card shadow mb-4">
                                
                                <div
                                    class="card-header py-3 d-flex flex-row align-items-center justify-content-between">
                                    <h6 class="m-0 font-weight-bold text-primary">All Students status</h6>
                                    <div class="dropdown no-arrow">
                                        <a class="dropdown-toggle" href="#" role="button" id="dropdownMenuLink"
                                            data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                                            <i class="fas fa-ellipsis-v fa-sm fa-fw text-gray-400"></i>
                                        </a>
                                        <div class="dropdown-menu dropdown-menu-right shadow animated--fade-in"
                                            aria-labelledby="dropdownMenuLink">
                                            <div class="dropdown-header">Dropdown Header:</div>
                                            <a class="dropdown-item" href="#">Action</a>
                                            <a class="dropdown-item" href="#">Another action</a>
                                            <div class="dropdown-divider"></div>
                                            <a class="dropdown-item" href="#">Something else here</a>
                                        </div>
                                    </div>
                                </div>
                                
                                <div class="card-body">
                                   
 
 <div class="card shadow mb-4">
    <div class="card-header py-3">
        <h6 class="m-0 font-weight-bold text-primary">Student Details</h6>
    </div>
    <div class="card-body">
        <div class="table-responsive">

<table class="table table-bordered" id="dataTable" width="100%" cellspacing="0">
                <thead>
                    <tr>
                        <th>Name</th>
                        <th>Form No</th>
                        <th>Course</th>
                        <th>Phone</th>
                       
                        <th>Generate</th>
                        
                    </tr>
                </thead>
                
                
                
               
                <tbody>
                    
                    <?php
                    
                    while ($row = mysqli_fetch_array($q)) {
                    
                    ?>
                    <tr>
                            <td> <?php echo  $row['Name'];   ?> </td>
                        <td> <?php echo  $row['FormNo'];   ?> </td>
                        <td>  <?php echo $row['Course'];   ?>  </td>
                         <td> <?php echo  $row['Phone'];   ?> </td>
                       
                        <td><a href="formGenCode2.php?id=<?php  echo $row['FormNo']; ?>"><input type="button" value="Generate Challan" class="btn btn-warning"></a></td>
                        
                    </tr>
                    
                    
                    
                    <?php
                    
                    
                    }

// FIX 4: Free result memory and close DB connection after loop
                    mysqli_free_result($q);
                    mysqli_close($con);
                    
                    ?>
                    
                </tbody>
            </table>
</form>
        </div>
    </div>
</div>

</div>
                            </div>
                        </div>

</div>

</div>

</div>

<footer class="sticky-footer bg-white">
                <div class="container my-auto">
                    <div class="copyright text-center my-auto">
                        <span>Copyright &copy; CSIT Team</span>
                    </div>
                </div>
            </footer>

</div>

</div>

<a class="scroll-to-top rounded" href="#page-top">
        <i class="fas fa-angle-up"></i>
    </a>

<div class="modal fade" id="logoutModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel"
        aria-hidden="true">
        <div class="modal-dialog" role="document">
            <div class="modal-content">
                <div class="modal-header">
                    <h5 class="modal-title" id="exampleModalLabel">Ready to Leave?</h5>
                    <button class="close" type="button" data-dismiss="modal" aria-label="Close">
                        <span aria-hidden="true">×</span>
                    </button>
                </div>
                <div class="modal-body">Select "Logout" below if you are ready to end your current session.</div>
                <div class="modal-footer">
                    <button class="btn btn-secondary" type="button" data-dismiss="modal">Cancel</button>
                    <a class="btn btn-primary" href="logout.php">Logout</a>
                </div>
            </div>
        </div>
    </div>

<script src="vendor/jquery/jquery.min.js"></script>
    <script src="vendor/bootstrap/js/bootstrap.bundle.min.js"></script>

<script src="vendor/jquery-easing/jquery.easing.min.js"></script>

<script src="js/sb-admin-2.min.js"></script>

<script src="vendor/chart.js/Chart.min.js"></script>

<script src="js/demo/chart-area-demo.js"></script>
    <script src="js/demo/chart-pie-demo.js"></script>

<script src="vendor/datatables/jquery.dataTables.min.js"></script>
     <script src="vendor/datatables/dataTables.bootstrap4.min.js"></script>
 
     
     <script src="js/demo/datatables-demo.js"></script>

</body>

</html>

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