----- Original Message -----
From: "Russell Curtis" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, July 07, 2004 12:24 PM
Subject: [PHP] Using split to establish extension of file
> I'm trying to use the split function to identify the extension of an
> uploaded file:
>
> $file_name = $_FILES['userfile']['name'];
> $pieces = explode(".", $file_name);
> $file_extension = $pieces[1]; // piece2
>
> Which will work, providing that the uploaded file only has one full-stop
in
> the name (so 'thisfile.pdf' will return 'pdf' as the $file_extension, for
> example.)
>
> However, there is a chance that someone will try and upload a file which
has
> more than one full-stop in it (eg. 'this.file.pdf') which will of course
> return 'file' as the variable $file_extension.
>
> My question is, is there any way to determine what the *last* result of
the
> array is rather than working from the first?
>
> This may be a basic question, but I'm a newbie; apologies in advance if
this
> is a simple one. I'm using PHP4, BTW, if that makes a difference.
You can get the last element of an array using the 'array_pop' function:
$last = array_pop($pieces);
see http://www.php.net/manual/en/function.array-pop.php for details
regards,
Ewout
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