例

代码如下

print_r(getimagesize('http://www.wd1x.com/templets/default/images/logo.gif'));

输出的结果为：
Array
(
[0] => 550
[1] => 190
[2] => 3
[3] => width="550" height="190"
[bits] => 8
[mime] => image/png
)