Replacing the Nth element of a string in PHP - how to implement it?

Question

PHP

There is a large text in which the same words can occur, for example, the word "begin"
You need to replace a certain Nth occurrence of this word (for example, the 5th) with the word "end".
How to replace exactly the Nth occurrence of a substring in a string in PHP ???

Answer 1

find the position of the desired occurrence and replace with substr_replace .