using strlen function in php to divide text in list item without missing words

Please visit this web address first to understand this project. [login to view URL] To do this project you must be very good with PHP. I want to use strLen function ( or you can use any other function you want) to list and chopped content into equal division. I know the last content will not be equal. You can only understand this project if you go on the site and view what I'm trying to do. I have written this code but something is missing is not working. Check out the site and see if you can do this. [login to view URL] *** Whole content, I want to chop it using list item ,ul li if possible equally I know last list will not be equal *** I want content on the left to be displayed in full. Some text are missing e.g on the first paragraph 'Punmping'. All string should be included. *** The content on the left stop at hatefulness, it should stop at I rise like the one on the right. *** The contents have to be displayed in UL > LI list format. *** Im trying to divide the content using strlen php *** You can change this code but the division must be in UL LI list format *** Please comment your code