UPDATE EXISTING ONLINE PHP SCRIPT WITH MYSQL DATABASE

I have 2 website Script ================== 1ST SCRIPT ============= 1 - i want sms/email alert to be integrated in the script for registration,debit and credit alert to customers phone number and email. 2 - i want the MySQL connection to be upgrade to MySQLi to work properly with any php version from php5 to php7 3 - i want customers login page, form transfer page and portal to be updated to more professional look and interface. i want it in a way i can update the interface with any color of my choice. 4 - I want the balance amount calculator to be standard. Example i want transfer 5,500 out 35,500.00 then during transfer the comma and dot will disappear after the transaction the current balance will still remain 30,000.00 customers portal. Note ==== The way amount calculator works once you add comma and dot in to the balance amount in admin portal or customer transfer page after successful transfer the balance amount will not be correct. But if there no comma or dot everything works fine. 2ND SCRIPT ============== A - i want the transfer code column in admin portal to be open so that admin can decide on what type of transfer code that can appear on customers portal transfer page during money transfer. B - i want the uploaded customer passport photograph to appear in admin portal beside each customers account details and the passport should have replace and deleted function. once it replaced in admin portal it will also change it customers portal.