Description:
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I'm using the following version of PHP on ubuntu : PHP Version 5.3.6-13ubuntu3.2

and have problems checking if an url exists with both fopen() and file_exists() functions.

print_r(stream_get_wrappers()); returns :

Array ( [0] => https [1] => ftps [2] => compress.zlib [3] => compress.bzip2 [4] => php [5] => file [6] => glob [7] => data [8] => http [9] => ftp [10] => phar [11] => zip ) 

(test script is above)

Test script:
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if(!file_exists('http://maps.googleapis.com/maps/api/js?sensor=false')) {
    echo 'Problem loading the url';

} else {
    echo 'it works!';
}

Expected result:
----------------
it works!

Actual result:
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Problem loading the url