[Solved] Notice: Use of undefined constant

Notice: Use of undefined constant :


This is one of the familiar exception in PHP.


Example PHP Source code which creates

notice: use of undefined constant

define(HOST, 'localhost');
define(USERNAME, 'root');
define(PASSWORD, '');



How it can be solved ?

define('HOST', 'localhost');
define('USERNAME', 'root');
define('PASSWORD', '');



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