PHP: Get remote image properties

Below is an example of how to get the image properties from a remote server/website using getimagesize() function of PHP.

$url = 'http://static.php.net/www.php.net/images/php.gif';
$size = getimagesize( $url );
print_r($size);

The output for the above script will return image width, height, type, etc as below.

Array
(
    [0] => 120
    [1] => 67
    [2] => 1
    [3] => width="120" height="67"
    [bits] => 7
    [channels] => 3
    [mime] => image/gif
)