What is the difference between using $_GET and $_POST when retrieving form data in PHP?

When retrieving form data in PHP, the main difference between using $_GET and $_POST is the way data is sent. $_GET sends form data in the URL, making it visible to users and limited in size, while $_POST sends data in the HTTP request body, keeping it hidden and allowing for larger amounts of data to be sent securely. 

// Using $_POST to retrieve form data
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $username = $_POST["username"];
    $password = $_POST["password"];
    // Process the form data as needed
}

Keywords

$_GET $_POST form data PHP difference

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