未定义的变量：__ ROOT__ PHP 7？ [重复]

Question

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• “Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP 28 answers

Install new PHP 7.01.

And have some errors:

PHP Notice:  Undefined variable: __ROOT__ in C:\web\index.php on line 60

require_once($__ROOT__.'/base/DBMS.php'); // - line 70

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Answer 1

$__ROOT__ 

seem's to be your document root (writed as a "magic constant" variable.. and visibly, the transition to php7 broke... :)

often it's defined by using real php magic constant like :

For PHP >= 5.3.0 try

__DIR__ 

For PHP < 5.3.0 try

dirname(__FILE__)