What are the differences between using $_POST and $_GET for form data retrieval in PHP?

When retrieving form data in PHP, the main difference between using $_POST and $_GET is in how the data is sent. $_POST sends data in the HTTP request body, while $_GET sends data in the URL. $_POST is more secure for sensitive information as it is not visible in the URL, while $_GET is useful for non-sensitive data or when you want to share the URL with the data. 

// Using $_POST for form data retrieval
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $username = $_POST['username'];
    $password = $_POST['password'];
    
    // Process the form data
}

Keywords

$_POST $_GET form data retrieval PHP differences

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