GAE php“urlfetch error”

i want to get a webpage content via my gae php application. but the code doesn't work.

my code is:

echo file_get_contents("http://www.navyfield.com", false);

and i tried my code on php-minishell,http://php-minishell.appspot.com/ it didnt work either.

here is the result

Google App Engine/1.8.7
PHP 5.4.19
>>> file_get_contents("http://www.navyfield.com", false);
file_get_contents(http://www.navyfield.com): failed to open stream: Fetch error

anyone got idea about this?

Done some checking it looks like that site is blocking the connection. I tried with URL fetch and with a raw socket from our IP range.