How to find the extension of an image from path in PHP?

Question

Is there any standard function in PHP to find only extension of an image from the corresponding file path?

For example ff my image path is like \'/testdir/dir2/image

Answer 1

$ext = pathinfo(
    parse_url('/testdir/dir2/image.gif?foo=bar', PHP_URL_PATH), 
    PATHINFO_EXTENSION
); //$ext will be gif

Answer 2

It's usually more desirable to detect the actual image type (not by extension but by its contents). For that, use getimagesize().

Answer 3

I would recommend you perfect way

$file_path = '/some/where/img.gif';  
$info = new SplFileInfo($file_path);  
$file_extension = $info->getExtension(); 
var_dump($file_extension);

for more detail here The SplFileInfo class

I hope this will help you.

Cheers!

Mudassar Ali