In starting, we will create MySQL database connection file in PHP.
Will use mysqli_connect() function to connecting database with PHP.
Then will use “SELECT FROM” SQL query to select a record from the MySQL database.
Then “INSERT INTO” SQL query to insert record into the MySQL database.
After that, “Update” SQL query to update the record into the MySQL database.
Finally, “DELETE From” SQL query to delete record into MySQL database.
As well as will use mysqli_query() function for run sql queries.