function to sanitize input to Mysql database

Question

I am trying to put a general purpose function together that will sanitize input to a Mysql database. So far this is what I have:

function sanitize($input){
          


        

Answer 1

the worst part that adding slashes does not sanitize anything, no matter what function was used.
and it should not be used in the means of whatever "sanitization" at all.

slashes do not "sanitize" data. Slashes do escape string delimiters only. Thus, the only sanitization you can talk of, is escaping and and quoting.

Otherwise, if you won't put quotes around "sanitized" string, you will have no protection at all.