Little PHP help (wordpress code)

please help me...!
i need a code as below,

if my post characters are more than 500 then it shows that this post length is: 1

if characters are more than 800 than it shows that this post length is: 2

how can i do this , i want to show this in my every post

 

i don't get what you want, please give more information!

 

I Dont know how youll integrate it with wordpress

But use this php function

strlen()