How in php you can click on a word in the text to replace it?

Question

PHP

Goodnight! The essence of the question is as follows: there is text in the block <div>or <textarea>. How, for example, by clicking on any word in the text, transfer it to a variable, through which then in the base of the text file find its synonym and substitute it back in the same place?

Answer 1

https://jsfiddle.net/brdnL69b/13/
Your word falls into the requestWord variable, you substitute it in ajax
Perhaps extra punctuation characters will need to be removed, I think you can do it yourself