What are some best practices for managing and updating pages through an admin area in PHP?

Managing and updating pages through an admin area in PHP involves creating a secure login system, implementing CRUD operations (Create, Read, Update, Delete) for pages, and ensuring proper validation and sanitization of user input to prevent security vulnerabilities. 

// Example code snippet for managing and updating pages through an admin area in PHP

// Start session
session_start();

// Check if user is logged in
if(!isset($_SESSION['logged_in'])) {
    header("Location: login.php");
    exit();
}

// Include database connection
include 'db_connection.php';

// Perform CRUD operations for pages
// Create page
if(isset($_POST['create_page'])) {
    // Validate and sanitize user input
    $title = mysqli_real_escape_string($conn, $_POST['title']);
    $content = mysqli_real_escape_string($conn, $_POST['content']);
    
    // Insert page data into database
    $sql = "INSERT INTO pages (title, content) VALUES ('$title', '$content')";
    mysqli_query($conn, $sql);
}

// Update page
if(isset($_POST['update_page'])) {
    // Validate and sanitize user input
    $id = mysqli_real_escape_string($conn, $_POST['id']);
    $title = mysqli_real_escape_string($conn, $_POST['title']);
    $content = mysqli_real_escape_string($conn, $_POST['content']);
    
    // Update page data in database
    $sql = "UPDATE pages SET title='$title', content='$content' WHERE id=$id";
    mysqli_query($conn, $sql);
}

// Delete page
if(isset($_POST['delete_page'])) {
    $id = mysqli_real_escape_string($conn, $_POST['id']);
    
    // Delete page data from database
    $sql = "DELETE FROM pages WHERE id=$id";
    mysqli_query($conn, $sql);
}

Keywords

CRUD operations PHP frameworks SQL injection prevention session management form validation

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