PHP & MySQL

PHP works with almost all database software, like Oracle and Sybase, but the most popular database is MySQL, which is free.

With PHP, you can connect to databases and change the way they work PHP is most often used with MySQL, which is a database system.

What does MySQL mean?

  • MySQL is an online database system. MySQL is an online database system that runs on a server.
  • MySQL is great for both small and big projects.
  • MySQL is quick, reliable, and simple to use.
  • SQL is used by MySQL.
  • MySQL can be built on several platforms.
  • MySQL is free to use and to get.
  • Oracle Corporation is in charge of making, distributing, and supporting MySQL.
  • MySQL is named after My, the daughter of co-founder Monty Widenius.
  • Tables hold the information in a MySQL database. A table is a group of related information that is made up of columns and rows.

Databases are good for storing information in a way that makes sense. A company’s database could have the following tables:

  • Employees
  • Products
  • Customers
  • Orders

System for PHP and MySQL Database

PHP and MySQL together are cross-platform (you can develop in Windows and serve on a Unix platform)

Database Queries

A query is a question or a request.

We can ask a database for information and get back a set of records.

Look at this query, which is written in standard SQL:

SELECT  Name FROM Class

The query above gets all the information from the “Class” table’s “Name” column.

Visit our SQL tutorial to learn more about SQL.

Download MySQL Database

If you don’t have a PHP server with a MySQL database, you can get one for free at http://www.mysql.com.

About the MySQL Database:

MySQL is the standard database system for websites with a LOT of users and a lot of data (like Facebook, Twitter, and Wikipedia).

Another great thing about MySQL is that it can be shrunk down to work with database applications that are built into other programmes.

 

What should you have already?

  • You’ve gone through the MySQL tutorial to learn the basics of MySQL.
  • I downloaded the latest version of MySQL and set it up.
  • User guest was made with the password guest123.
  • If you haven’t already made a database, you would need to know the root user’s password to make one.

This chapter is broken up into the following parts:

  • Connecting to the MySQL database: Find out how to use PHP to open and close a connection to the MySQL database.
  • Create a MySQL Database with PHP: This section tells you how to use PHP to create a MySQL database and tables.
  • Delete MySQL Database Using PHP: This section tells you how to use PHP to delete MySQL databases and tables.
  • Insert Data to MySQL Database: Once you’ve made your database and tables, you’ll want to add your data to the tables you’ve made. During this session, you will look at real examples of how to insert data.
  • Get Data From MySQL Database: Find out how to use PHP to get records from a MySQL database.
  • Using Paging with PHP: This one tells you how to show the results of your query on more than one page and how to make the link for navigation.
  • Updating Data in MySQL Database: This section tells you how to use PHP to change records that are already in MySQL database.
  • Getting rid of data from MySQL database: This section shows how to use PHP to get rid of or delete records from MySQL database.
  • Using PHP to Back Up MySQL Database: Find out how to make safe copies of your MySQL database in different ways.
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