php - mysqli_free_result necessary?

Question

I was looking through my code and read that it was recommened to use mysqli_free_result when your result object is not needed anymore. But after seeing that each query is outputed to the $result variable repeatedly throughout the script, I am wondering if mysqli_free_result would really be necessary. Seems like each time a query is ran the $result variable is already being wiped clean and set to a new result. Just curious if anyone has any input on this.

Answer 1

Actually it’s necessary, because it might make a heavy load into the server when many requests are made. So preferably, you should use it.

Some other cases when you know that this query is followed by other query so you don’t have to use it.