dir manipulation(__DIR__) not working

the following behaves different in host:

echo 'DIR:' .__DIR__; // DIR:__DIR__

localhost:(works fine):

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DIR:C:\Program Files\VertrigoServ\www

why this different output?

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You need PHP 5.3 to use __DIR__

Manual page

On previous versions you may use dirname(__FILE__) instead

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According to the PHP magic constants docs, the __DIR__ constant was added only in php 5.3.0. You're probably using an older version in your "host" environment.

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Try:

<? echo realpath(dirname(__DIR__)); ?>

Folder: localhost or root :)