Php regex [^abc] as group not individual letters

I understand that a regex written like:

[^abc]

means any character except a, b or c can appear once.

But how would I write the regex to equal any character except abc "as a group" and not individual letters.

I've already tried:

([^a][^b][^c])  didn't work.
([^abc])        didn't work.

can someone please assist?
thx
D-
jax0Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

brad2575Commented:
This should match any letters but a, b, or c
(^-?[d-zD-Z]*$)
0
Pui_YunCommented:
Hi jax0,
This took a bit of trial and error, but the following regex seems to work for me.  I tested it with:
abccabcabdabc

and it gives me:
c
abd

which looks good for me.

Hope this helps.
P.
(?:.(?<!abc))+?(?=abc|\z)

Open in new window

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
HackneyCabCommented:
Thank you, Pui_Yun, I'd not yet discovered that you can use NOT patterns (negative assertions) in PCRE.

http://php.net/manual/en/regexp.reference.assertions.php

That will come in handy, no doubt.
0
Pui_YunCommented:
No problem, I hope it comes in handy :)

P.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Regular Expressions

From novice to tech pro — start learning today.