What is the correct way to access form data in PHP using the $_POST superglobal?

When accessing form data in PHP using the $_POST superglobal, you need to make sure that the form data is sent using the POST method in the HTML form. To access the form data, you can use the key names of the form fields as indices in the $_POST superglobal array. 

// Accessing form data using the $_POST superglobal
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $username = $_POST["username"];
    $password = $_POST["password"];
    
    // Use the form data as needed
}

Keywords

PHP $_POST superglobal form data access correct way

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