Hello can you help me to connect my registration PHP which I don't know how to insert those registration data on my database and table which is the admin table and the regular table. Can you help me...

Hello can you help me to connect my registration PHP which I don't know how  to insert those registration data on my database and table which is the admin table and the regular table. Can you help me for the right code for the table admin and regular to connect to my database I would appreciate if you would put the right code and SQL query for the connection.

Here is my PHP code