Connecting Prestashop databse with other website database

WE NEED SOMEONE TO DEVELOP A A MODULE/ SNIPPET /CODE FOR US WHICH ALLOWS US TO CONNECT THE PRESTASHOP DATABASE WITH THE DATABASE OF OTHER SITE DEVELOPED ON MYSQL (CORE PHP) BOTH IN TERMS OF FETCHING UP THE DATA AND RELEASING THE DATA FROM BOTH ENDS OR IN SIMPLE LANGUAGE IF [login to view URL] REGISTERS USERS IN STORE THEN THOSE DATA ALSO BECOME AVAILABLE ON [login to view URL] AND OTHER WEBSITE DEVELOPED IN HTML-PHP LANGUAGE CONNECTED WITH [login to view URL] (PRESTASHOP) AND VICE-VERSE. SO BASIC IDEA IS TO MAKE SOMETHING PLUGIN/CODE WHICH DYNAMICALLY CONNECTS AND UPDATES THE DATA IN BOTH THE DATABASE TABLES IN REAL TIME.