wordpress user roles creation

// MEMBER ROLE
if (isset($_GET['activated']) && is_admin()){
    add_action('init', 'member_role');
}
function member_role() {
$result = add_role(
    'member',
    __( 'Member' ),
    array(
       'read'         => true,  // true allows this capability
        'edit_posts'   => false,
        'delete_posts' => false, // Use false to explicitly deny
    )
);
if ( null !== $result ) {
    echo 'Yay! New role created!';
}
else {
    echo 'Oh... the basic_contributor role already exists.';
}
}