Comments on: PHP Get File Extension

By: Peter

Peter — Sat, 04 Feb 2012 12:58:26 +0000

Jacob, this is because pathinfo() works on filesystem paths not URLs. For your example with a URL, you could get the path by using parse_url().

$path = parse_url($url, PHP_URL_PATH);

$ext  = pathinfo($path, PATHINFO_EXTENSION);

By: Jakob Sternberg

Jakob Sternberg — Sat, 04 Feb 2012 02:57:52 +0000

The only thing that fails is if the path has a query line attached. Like

echo pathinfo("http://mysite.com/page.php?file=msg.txt", PATHINFO_EXTENSION)

- it will output ‘txt’

Just a note. easy to fix offcourse:

function getFileExtension($p) {

   if( strpos($p,"?") != '' ) $p = substr($p, 0, strpos($p,"?") ); 

   return pathinfo($p, PATHINFO_EXTENSION);

   }

echo getFileExtension("http://mysite.com/page.php?file=msg.txt")

- will output ‘php’

Thanks for the heads up on PATHINFO_EXTENSION!

By: Ram Kishor Agrawal

Ram Kishor Agrawal — Wed, 01 Feb 2012 06:52:58 +0000

Beautifully explained. Thanks!

By: Casey

Casey — Thu, 26 Jan 2012 00:02:38 +0000

Exactly what I needed. Thank you!

By: chris at Red Privet

chris at Red Privet — Thu, 19 Jan 2012 15:43:52 +0000

Thanks so much for your research. I was able to utilize your findings on a project I’m working on currently.

By: Colin

Colin — Sat, 14 Jan 2012 22:21:29 +0000

Big thanks! Nice write up too.

By: Anandh

Anandh — Thu, 12 Jan 2012 10:55:09 +0000

Very good concept. Thanks a lot. explode() worked out fine.

By: Mateusz Michalik

Mateusz Michalik — Thu, 15 Dec 2011 07:45:53 +0000

Handy tip, thanks!

By: Dennis

Dennis — Tue, 13 Dec 2011 11:47:11 +0000

Thanks! My current project will like this

By: Waqas

Waqas — Tue, 22 Nov 2011 15:26:34 +0000

Thanks, it helped me a lot.