Function getSiteName

/* PHP_SELF - page.com/shop.php ==> return 'Shop'
PHP_SELF - page.com/shop-products.php ==> return 'Shop products'
PHP_SELF - page.com/shop/products.php ==> return 'Products' */

function getPageName() {

  $get_page_name['PHP_SELF'] = basename($_SERVER['PHP_SELF']);
  $get_page_name['NAME'] = explode('.', $get_page_name['PHP_SELF']);
  $get_page_name['LONGER_NAME'] = str_replace('-', ' ', $get_page_name['NAME']);
  $get_page_name['SITE_NAME'] = ucfirst($get_page_name['LONGER_NAME']['0']);

  return $get_page_name['SITE_NAME'];
 }