Databases can store user details from websites in MySQL for comparison on return visits. Forms are typically used to collect names, addresses, passwords, and are submitted through PHP to insert the data into MySQL tables on a server. Well-designed forms will retain any existing data if the registration fails, allowing users to easily correct mistakes. PHP scripts can validate forms, process registrations by writing data to user tables, and load new pages upon successful logins by retrieving user details from the database into sessions.

2. DATABASES
• COMPUTER WEBSITE USER DETAILS CAN BE STORED IN A MYSQL DATABASE FOR COMPARISON ON NEW VISIT
• TYPICALLY DATABASES STORE ID, NAMES, EMAIL ADDRESSES, PASSWORD, AND REGISTRATION DATES
• FORMS REQUEST NAMES, ADDRESSES & PASSWORDS & ARE SUBMITTED USING POST METHOD USING PHP
AS ITS FORM ACTION SCRIPTING LANGUAGE EMBEDDED WITHIN YOUR HTML CODING FOR PRODUCING
FORMS
• FORMS CAN VALIDATE ACCURACY OF DATA & EVEN OFFER STICKY FORM TO HOLD DATA ALREADY ENTERED
• USING INSERT INTO CAN PROCESS THIS DATA INTO A MYSQL TABLE ALREADY CREATED ON A SERVER
• USING SESSION A USER NEED ONLY ENTER DETAILS ONCE WHILE INFORMATION IS STORED ON THEIR VISIT

3. USER DATABASE
• DATABASE TABLES ARE BUILT IN MYSQL USING COLUMNS AND ROWS GENERATED WITHIN MYSQL
• CHAR OR VARCHAR IS USED FOR ENTERING DATA TYPES INVOLVING TEXT ENTRIES
• USER IDS ARE MADE USING NUMBERS ABOVE ZERO AND ASSIGNED A TYPE OF INT
• DATETIME WILL BE UTILIZED FOR REGISTRATION TIMES AND DATES FORM DATA IS ENTERED
• EMAIL ADDRESSES, OR ON SCREEN NAMES, CAN BE ASSIGNED AS UNIQUE SO NO 2 ARE DUPLICATED

4. REGISTER PAGE ON YOUR WEBSITE
• USER REGISTRATION FORMS REQUIRE INPUT FIELDS CREATED WITH HTML AND PHP TO PROCESS DATA
• <FORM> TAG METHOD SHOULD SPECIFY THE POST METHOD
• GENERALLY SPEAKING AFTER INFORMATION IS ENTERED AND PROCESSED IT IS COMMON PRACTICE TO
REDIRECT THE USER OR PROVIDE A MESSAGE TO CONFIRM THAT THEIR REGISTRATION HAS BEEN
SUCCESSFUL

5. PROCESSING REGISTRATIONS
• WHENEVER A REGISTRATION PROCESS FAILS, THE BEST DESIGNED FORMS RETAIN USERS INPUT FIELDS
CAN BE HELD ONTO USING STICKY FORMS TO ENABLE THE USER FASTER CORRECTION OF TEXT AND DATA
FIELDS
• THE MYSQL SERVER MUST BE RUNNING SO INPUT DATA CAN BE WRITTEN INTO USERS TABLES

6. LOGIN PAGES
• YOU CAN ALSO PROVIDE A FAILED TO REGISTER MESSAGE IF THIS OCCURS
• OTHERWISE UPON SUBMITTING INFORMATION IF THE CODING IS DONE PROPERLY YOU WILL SEE ALL OF
THE DATA FROM THE FORM TRANSFERRED IN TO THE MYSQL DATABASE TABLE
• PHP CAN ALSO CREATE SUBSEQUENT SCRIPTS THAT VALIDATE FORMS AND LOAD NEW PAGES
• WHEN LOGINS SUCCEED SCRIPTS SET USER DETAILS RETRIEVED FROM THE DATABASE AS SESSION DATA
SO THAT THE USER IS RECOGNIZED AS THEY NAVIGATE BETWEEN PAGES OF THE SAME WEBSITE

7. THANKS FOR VIEWING THE
INTRODUCTION TO
MY SQL