What are the potential security risks associated with using the $_GET superglobal in PHP for dynamic content inclusion?

Using the $_GET superglobal in PHP for dynamic content inclusion can expose your application to security risks such as SQL injection and cross-site scripting attacks. To mitigate these risks, it is important to properly sanitize and validate any input received via $_GET before using it in your code. 

$page = isset($_GET['page']) ? $_GET['page'] : 'home';

// Validate and sanitize the input before using it
$allowedPages = ['home', 'about', 'contact'];
if (!in_array($page, $allowedPages)) {
    $page = 'home';
}

// Include the desired page
include 'pages/' . $page . '.php';

Keywords

$_GET Superglobal Security risks Dynamic content inclusion PHP

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