How to use PDO to update the database?
1) Write the regular update statement and again, instead of values, assign the named placeholders. For example: $sql = "UPDATE `users` SET `city`= :city, `phone`
Tag : PDO tutorials
How to use PDO to insert data into the database?
The SQL code for the users table: CREATE TABLE IF NOT EXISTS users (id int(11) NOT NULL AUTO_INCREMENT, name varchar(60) DEFAULT NULL, phone varchar(12) DEFAULT