更優雅的PHP代碼

Question

假設方法setEmail1（）設置電子郵件地址或如果電子郵件地址似乎有誤，則生成錯誤消息，是否有一種更優雅的方法（也許僅用1行）來執行以下操作？ ：

    $email2 = $newCustomer->setEmail1($_SESSION['customer_new']['email2']); 
    if ($email2 !== true) $_SESSION['customer_new']['error']['email2'] = $email2;

謝謝 ！

Answer 1

您可以執行以下操作。 但是，為什么要全部寫成一行？

$_SESSION['customer_new']['error']['email2'] = ($newCustomer->setEmail1($_SESSION['customer_new']['email2']) !== true) ? $email2 : null;

Answer 2

$_SESSION['customer_new']['error']['email2'] = $newCustomer->setEmail1($_SESSION['customer_new']['email2']) ?: null;

？：運算符是三元運算符的變體:)

$x = $y ?: 0;
// is equivalent to
$x = $y ? $y : 0;

Answer 3

下面列出了一些示例，但為清楚起見，通常不建議這樣做。 當然是您要的，所以這些就是答案，但是我會認真考慮這樣做。 如果您必須調試代碼，那么那片襯里可能是一個讓人痛苦的地方。

我個人將看這樣的東西，它的基本類不涉及任何模式，但是您可能希望研究諸如MVC或工廠模式之類的類，以使您的編碼更加標准化。

class.email.php

class email {

    public function validateEmail($email_address) {

        // add your validation here. format it in a readable
        // manner and debugging/future updates will be a breeze.

    return $result;

    }

}

file.php

require_once('class.email.php');

// With a framework like MVC this would have been preloaded in
// the controller, but we initialise it here.
$class_obj = NEW email();

// and here is the one liner that you would see in your main file.
$email = $class_obj->validateEmail($email);