I want to know if there is a way for me to make an application in PHP or another language where somebody puts their username and password and I compare their contacts with my contacts to see which contacts are different in our accounts.
For example, his contacts are:
John Smith, VP, Coca Cola
Peter Smith, Manager, Pepsi
Mary Smith, President, Dr Pepper
And my contacts are
Steven Smith, President, Microsoft
Peter Smith, Manager, Pepsi
Raymond Smith, Manager, Coca Cola
At the end that analysis would give something like:
Accounts found: 1
Accounts not found: 2
(Because we both have Peter Smith)
Is this clear? Thanks!