我如何在这种情况下使用if/then/else？

Question

我在使用这些if/then/else陈述时遇到了问题.

这是我的背景:

$email = trim($_POST['email']);
$name = trim($_POST['name']);
$lname = trim($_POST['lname']);
$order = trim($_POST['order']);
$tel = trim($_POST['tel']);
$comments = trim($_POST['comments']);
$op ="0000-0000-0000";
$om ="mail@mail.com";
$bronze = "180 EGP/yr";
$silver ="280 EGP/yr";
$gold ="350 EGP/yr";
$plat ="420 EGP/yr";
$free ="EGP/yr";


if ($order == 'bronze') {
    echo "Please notice that your order will cost $bronze";
}

现在我该怎么办呢$silver？等像silver,gold,plat和free甚至如果我想添加更多.

Answer 1

您可以使用该switch ... case结构.

但是如果你必须做很简单的事情,你甚至可以使用关联数组进行很多重构.

例:

$minerals = array(
  'gold' => array(
    'color' => 'yellow',
    'cost' => 350
  ),
  'silver' => array(
    'color' => 'gray',
    'cost' => 280
  )
);

// check order type
if (!isset($minerals[$order]))
  die("Unsupported mineral type ".$order.".");

echo "Please notice that your order will cost "
  . $minerals[$order]['cost'] . " EGP/yr.";