edit_task.php

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Edit Task</title>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
</head>
<body>
<?php

// Include header
include('header.php');
?>
    <div class="container">
        <div class="row">
            <!-- Include Left Navigation -->
            <?php include('nav.php'); ?>

            <!-- Main Content Section -->
            <div class="col-md-9">
                <h2>Edit Task</h2>
                <form method="POST" action="edit_task.php?task_id=<?php echo $task_id; ?>">
                    <div class="form-group">
                        <label for="task_name">Task Name:</label>
                        <input type="text" name="task_name" id="task_name" class="form-control" value="<?php echo htmlspecialchars($task['task_name']); ?>" required>
                    </div>
                    <div class="form-group">
                        <label for="task_description">Task Description:</label>
                        <textarea name="task_description" id="task_description" class="form-control" required><?php echo htmlspecialchars($task['task_description']); ?></textarea>
                    </div>
                    <div class="form-group">
                        <label for="due_date">Due Date:</label>
                        <input type="date" name="due_date" id="due_date" class="form-control" value="<?php echo htmlspecialchars($task['due_date']); ?>" required>
                    </div>
                    <button type="submit" class="btn btn-primary">Update Task</button>
                </form>
            </div>
        </div>
    </div>
    <?php
// Include footer
include('footer.php');
?>
</body>
</html>