*new Unique! TRY THIS duplicate locater

Anon

All right...

Please, someone with a lot of knowledge or talent, or someone with a vast knowledge of quantum dynamic physics,

Lets say I have this block of text:

abcdefg0348u59u609uabcdefgkjlkjlkjh987abcdefg98y9iuh98gabcdefg798t876576576fabcdefgkgyuf876509876abcdefggugouabcdefg87tr5876abcdefggabcdefgjhg876abcdefggfgi76r5abcdefgkjlh9876abcdefg\abcdefgjhg7986abcdefg

NOW, notice that 'abcdefg' is repeated all though-out this block of text, but not in any sort of pattern.

Lets say this block of text is dynamically generated, and next time 'abcdefg' could be 'zyx123987'.

Is there any way, that I can search the string of text for duplicated text and then return what the most duplicated piece of text or word is? Of course without knowing what it will be to begin with?

An operation example would be: taking the most duplicated text, and replacing it with # , to cut down on the size of the text block for transport.

so something that is:
12345678a12345678b12345678c12345678d12345678e12345678f12345678g12345678h12345678i

could be cut into 1/4 - 1/3 of its length:
#a#b#c#d#e#f#g#h#i

and recombined later, after transport:
12345678a12345678b12345678c12345678d12345678e12345678f12345678g12345678h12345678i

Can anyone help me on this one? I have given it all the thought I can muster alone.

I would be happy if there is a php function to do this, and I just do not know about it.

Thanks In advance!

Anon

I doubt there's a function to do it, but you'll need to do something like this:

Iterate through each letter. Check for repeats. The move to two letters. Take the first two, iterate looking for repeats. Take 2 & 3, check, etc, then 3 letters, then 4, etc until your substring length is the length of the actual string.

CPU intensive, and there might be a better way, but brute force will work, anyway 🙂

Anon

If you're just using for transport, send it to a text file and bzip2 it. Send it to where it needs to go & Unbzip2 on other end.
use "fputs", system("bzip2 $filename"), then "mail()".
If it's going to a browser, put this at the beginning of your code:
ob_start("ob_gzhandler");
If the browser will accept a zipped and unzip it for the user, you're set.

Anon

Actually, its for an encryption algorythim.
764 charicters long. I would like to cut it down to 256. It reseeds the saalt, so there is repeating text.