在Cake PHP中的哪里定义全局函数或常量。 定义恒定动态

Question

I am facing issue to define constant in cake PHP like:

I want to define these constant from the Database.

define("APP_NAME","Test Application");

How can i access these constant Model, controller and Views? How can i define global function And can be accessed from the Model, controller and Views?

Please let me know. I am new in Cake PHP

Answer 1

The best way to define and use the constants is create a separate file and define all constants there. like I have created a file "cons_variables.php" and call this file in "app\\Config/bootstrap.php" at the end.

include 'cons_variables.php';

this file contains code like:

define('PER_PAGE', '1');
define('ADMIN_PAGING', '10');

To access the constants from database is not a good way.Constants can not be redeclare once they defined. Even also you want to use constants from database than you have to create a component for that and fetch the constants value there. This component can be use whenever you want by $components array or your controller's beforeFilter() method: