Getting a file extention

ETbyrne · 06-03-2008, 04:57 PM

I am wondering how you get the file name and exstention from a $_FILES field because this doesn't work:

PHP Code:


			
$filename = $_FILES['myinputbox'];

Thanks,
Evan Byrne

ETbyrne · 06-03-2008, 04:59 PM

Never mind, I think I found the answer here > PHP File Upload

SpYkE112 · 06-03-2008, 05:40 PM

You could do like this as an alternative, but it is stupid to rely on mime types and extentions.

But:

PHP Code:


			
<?php
$myFile = '/path/to/my.file';

$ext = end(explode('.', $myFile));

echo($ext);

// Outputs: file
// Or it should ;)
?>

Enfernikus · 06-03-2008, 08:12 PM

I'd like to point out the pathfile function here's an example

PHP Code:


			
$filename = 'somereallyrandomfile.png';
$ext = pathinfo($filename, PATHINFO_EXTENSION);

Enfernikus · 06-03-2008, 08:14 PM

Sorry - double post.

Wildhoney · 06-03-2008, 08:27 PM

I've used Enfernikus' way ever since I found about it. That and my other ways, apart from regular expressions, contain a function within a function, and PHP when in strict mode doesn't like that

SpYkE112 · 06-03-2008, 09:17 PM

You could then make it into 2 variables i guess :)
But pathinfo() seems a whole lot better ;)

Wildhoney · 06-04-2008, 02:34 AM

The second argument wouldn't need to be added to these functions if PHP supported this:

php Code:

$ext = pathinfo($filename)['ext'];

It's exasperating!

Jmz · 06-04-2008, 09:49 AM

Quote:

Originally Posted by SpYkE112

You could do like this as an alternative, but it is stupid to rely on mime types and extentions.

But:

PHP Code:


			
<?php

$myFile = '/path/to/my.file';



$ext = end(explode('.', $myFile));



echo($ext);



// Outputs: file

// Or it should ;)

?>

What should you use to determine the file type if you dont use mime types and file extensions?

I've been having some problems creating a secure, image only file upload script. Sometimes it decides the mime type of a jpg file isn't acceptable.

SpYkE112 · 06-04-2008, 12:33 PM

Well, frankly i don't know, but if it is images only, then you could probaly run it through some GD, but try and take a look at KalleLoad - Powered by KalleLoad it's an open source project, by Kalle here at TalkPHP :)