I have a form with PHP validation and also a mysqli query checking for duplicates in the database for mailing address and email address in mysql.
It works fine but the customers are adding spaces in the mailing address for example 111 mailing address A V E, 1 1 1 ma iling address A V E etc. and my sql query doesn't see that as an address that's a duplicate.
Their alslo adding email address like my@emailaddress.com and m.y@emailaddress.com, m.y.2@emailaddress.com etc to bypass that comparision also.
Is there anyway to stop this from happening?