note 102778 added to function.include-once

I am trying to use PHP 5.3.5 for development of a system. When I try the commands

include PEAR_DIR.'Compat.php' 
PHP_Compat::loadFunction('file_get_contents');

it is returning error Class 'PHP_Compat' not found

I can load the file in the browser with correct directory path. I tried the command

include_once dirname(__FILE__).'/libs/Pear/Compat.php';

This also showing same error.

This is a general pattern happening with include, include_once, require and require_once commands.

Any helping pointers are really appreciated.
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Probable Submitter: 117.204.125.96
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Manual Page -- http://www.php.net/manual/en/function.include-once.php
Edit        -- https://master.php.net/note/edit/102778
Del: integrated  -- https://master.php.net/note/delete/102778/integrated
Del: useless     -- https://master.php.net/note/delete/102778/useless
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Del: spam        -- https://master.php.net/note/delete/102778/spam
Del: non-english -- https://master.php.net/note/delete/102778/non-english
Del: in docs     -- https://master.php.net/note/delete/102778/in+docs
Del: other reasons-- https://master.php.net/note/delete/102778
Reject      -- https://master.php.net/note/reject/102778
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