edit_profile.php

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Edit Profile</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 Profile</h2>
                <?php if ($error): ?>
                    <div class="alert alert-danger"><?php echo $error; ?></div>
                <?php endif; ?>
                <?php if ($success): ?>
                    <div class="alert alert-success"><?php echo $success; ?></div>
                <?php endif; ?>
                <form method="POST" action="edit_profile.php">
                 <div class="form-group">
                        <label for="username">Username:</label>
                        <input type="text" name="username" id="username" class="form-control" value="<?php echo htmlspecialchars($user['username']); ?>" disabled>
                    </div>
                    <div class="form-group">
                        <label for="full_name">Full Name:</label>
                        <input type="text" name="full_name" id="full_name" class="form-control" value="<?php echo htmlspecialchars($user['full_name']); ?>" required>
                    </div>
                    <div class="form-group">
                        <label for="email">Email:</label>
                        <input type="email" name="email" id="email" class="form-control" value="<?php echo htmlspecialchars($user['email']); ?>" required>
                    </div>
                    <button type="submit" class="btn btn-primary">Update Profile</button>
                </form>
            </div>
        </div>
    </div>
    <?php
// Include footer
include('footer.php');
?>
</body>
</html>