How can a PHP program determine whether to use $_POST or regular parameters for parameter passing?

When determining whether to use $_POST or regular parameters for parameter passing in a PHP program, you can check if the request method is POST using the $_SERVER['REQUEST_METHOD'] variable. If the request method is POST, then you should use $_POST to access the parameters. If the request method is not POST, you can fall back to using regular parameters. 

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // Use $_POST for parameter passing
    $param1 = $_POST['param1'];
    $param2 = $_POST['param2'];
} else {
    // Use regular parameters for parameter passing
    $param1 = $_GET['param1'];
    $param2 = $_GET['param2'];
}

Keywords

PHP $_POST parameter passing form submission data validation

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