What are the benefits of using $_POST and $_GET over direct variable usage in PHP?

Using $_POST and $_GET over direct variable usage in PHP provides increased security by preventing direct manipulation of variables through the URL. It also helps in maintaining a clean and organized code structure by clearly distinguishing between data sent via POST and GET methods. Additionally, using these superglobals makes it easier to handle form submissions and URL parameters in a standardized way. 

// Using $_POST and $_GET superglobals to access form data and URL parameters

// Accessing form data sent via POST method
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $username = $_POST["username"];
    $password = $_POST["password"];
    
    // Process form data
}

// Accessing URL parameters sent via GET method
if (isset($_GET["id"])) {
    $id = $_GET["id"];
    
    // Process URL parameter
}

Keywords

$_POST $_GET direct variable usage data security form submission

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