Explore creating scalable PHP web applications, structuring code efficiently, managing data storage, and implementing automated testing to ensure robustness and maintainability in real-world projects.

docker.tar.gz

Serve /usercode

Run index.php (quiet composer install)

Serve /usercode (quiet composer install)

execute_apcu

This course is for people who have already learned the basics of PHP (or just finished the "Learn PHP from Scratch" course) and want the bigger picture of making big web applications with this language.

First, you'll learn how all PHP web applications communicate with the world and how to turn multiple source code files into one application. Then you'll learn multiple approaches to structuring the whole application. It will help you write code that's easy to maintain. Also, this is a common topic for job interview questions.

Next, you'll learn different data storage methods, from user sessions to databases. This course doesn't duplicate the official documentation but instead provides an overview of the various tools you can use. You'll learn how to use them in PHP, their tradeoffs, and how to pick what's best for your project.

Finally, you'll learn how to make automated tests for your project to ensure that it works as expected.

Developing Web Applications with PHP

Is the APCu cache server-specific?

What is the default session lifetime?

Is it a good idea to use the user ID as a session ID?


Is it a good idea to use the user ID as a session ID?

Is it possible to store the user sessions in a database?

Is it possible to store the user sessions in a database?

A script gets an integer value from the session, increments it and saves it back. Currently, the value is `0`.

What would be the value if you run this script 10 times simultaneously?

A script gets an integer value from the session, increments it and saves it back. Currently, the value is <code>0</code>.
What would be the value if you run this script 10 times simultaneously?

A script locks a file, gets an integer value from it, increments the value, and saves it back. Currently, the value is `0`.

What would be the value if you run this script 10 times simultaneously?


A script locks a file, gets an integer value from it, increments the value, and saves it back. Currently, the value is <code>0</code>.
What would be the value if you run this script 10 times simultaneously?

A script locks a file, gets an integer value from it, increments the value, and saves it back. The load balancer distributes all the requests randomly among three servers. Currently, the value is `0` on every server.

What would be the value if you run this script 10 times simultaneously and then request the value?


A script locks a file, gets an integer value from it, increments the value, and saves it back. The load balancer distributes all the requests randomly among three servers. Currently, the value is <code>0</code> on every server.
What would be the value if you run this script 10 times simultaneously and then request the value?

Introduction

Communicating with the Client

Static Web Application

Structuring Code Files

Application Architecture Basics

PHP-Based Web Application

Storing State

Databases

Using a Database in the PHP Application

Testing

Testing the PHP Application

Advanced Architecture Patterns

Final Assessment

Conclusion

Quiz: Storing State