Are thes sentences all OK?
(someone accuses me of doing or saying something)
If I say;
If I said anything like that, I would say I did. and If I had said anything like that, I would say I did.
If I did anything like that, I would say I did. and If I had done anything like that, I would say I did.

Question

Are thes sentences all OK?
(someone accuses me of doing or saying something)
 If I say;
 If I said anything like that, I would say I did. and  If I had said anything like that, I would say I did.
 If I did anything like that, I would say I did. and   If I had done anything like that, I would say I did.

Answer

They're both grammatically correct and could be used in everyday English speech so far as my opinon goes, but it seems a bit redundant and long. It could be shortened too

"If I said/did anything like that, I would admit it."  or  "If I said/did anything like that, I would confess."

But the second one would be used more in a situation where what you said or did was something that got you in trouble.