php - file_get_contents - Connection timed out -

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<?php $a = file_get_contents('http://www.google.com'); echo $

why browser returning error?

warning: file_get_contents(http://www.google.com) [function.file-get-contents]: failed open stream: connection timed out in /home/test.php on line 2

mostly server cannot connect external resource, example, because of firewall restrictions.


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