[RESOLVED] Finding "_01" at END of String

[partypete]

Hello all,

I'm trying to create an image upload page and need to rename the uploaded file if a file with the same name currently exists. I want to use an incremental number system but don't know the proper regular expression to find the incremented portion of the file name so I can change it.

After stripping the file extension when the file uploads I might end up with a file name like:

my_image_34_name_03

I need to be able to identify an UNDERSCORE character followed by EXACTLY two NUMBERS at the very END of a string.

This would recognize "03" and would NOT recognize "34".

I would then use the following to increment the file name

$name = my_image_34_name_03;
$name++;

Can anyone help me with the syntax to spot "00" - "99" at the END of a string?

Thank you!

Peter

[partypete]

Actually I think I may have figured out how to do it:

preg_match('/[_][0-9][0-9]$/m', $name)

[_] - Find an underscore
[0-9] - followed by a number from 0 - 9
[0-9] - followed by another number from 0 -9
$ - at the END of a string (or before a line break?)

I'm hoping that will do it. Man RegexBuddy is one handy program for trying to figure this stuff out.