變量似乎定義

Question

我試圖做一個網站的組織設置時將未初始化的，但我已經遇到了一個問題，在類文件，我用$website['website_name'] = 'Delusion Servers';然而，當我把裏面的變量功能，它說它是未初始化的。

<?php 

/* 
* Delusion Servers 
* Website access at (delusionservers.com). 
* Developed, designed and managed by Lewes B. 
* PAGE: WEBSITE.CLASS.PHP 
*/ 

$website['website_name'] = 'Delusion Servers'; 

class website { 

    function killPage($content){ 
     die(" 

      <h1>" . $website['website_name'] ."encountered an error</h1> 

      <br /><br />" . $content . " 

      "); 
    } 
} 

$website = new Website; 
?> 

怎麼了？

Answer 1

解決方案1：類常量

class Settings { 
    const WEBSITE_NAME = 'Delusion Servers'; 
} 

class website { 

    function killPage($content){ 
     die("<h1>" . Settings::WEBSITE_NAME ." encountered an error</h1> 
      <br /><br />" . $content); 
    } 
} 

解決方案2：全局常量

define("WEBSITE_NAME","Delusion Servers"); 
... 
class website { 

    function killPage($content){ 
     die("<h1>" . WEBSITE_NAME ." encountered an error</h1> 
      <br /><br />" . $content); 
    } 
} 

解決方案3：類屬性

class website { 
    private $websiteName = "Delusion Servers"; 

    function killPage($content){ 
     die("<h1>" . $this->websiteName ." encountered an error</h1> 
      <br /><br />" . $content); 
    } 
} 

Answer 2

你在類中的功能是在不同的範圍。

嘗試這種情況：

class website { 

    function killPage($content){ 
     die(" 

      <h1>" . $this->website_name ."encountered an error</h1> 

      <br /><br />" . $content . " 

      "); 
    } 
} 

$website = new Website; 
$website->website_name = 'Delusion Servers'; 

Answer 3

class website { 

    public $website = array(); 

    public function __construct() { 
     $this->website['website_name'] = 'Delusion Servers'; 
    } 

    function killPage($content){ 
     die(" 

      <h1>" . $this->website['website_name'] ."encountered an error</h1> 

      <br /><br />" . $content . " 

      "); 
    } 
}