How can access to the variable of the form values be achieved in PHP?

To access the variables of the form values in PHP, you can use the $_POST or $_GET superglobals depending on the method used in the form submission. These superglobals store the form data in key-value pairs, where the key is the name attribute of the form input field. You can then access the form values by referencing the key in the superglobal array. 

// Assuming form method is POST
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $username = $_POST['username'];
    $password = $_POST['password'];
    
    // Use the form values as needed
}

Keywords

$_POST $_GET $_REQUEST $_SERVER form data

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