Name: PHP for Beginners: Learn PHP OOP PHP PDO and PHP Security
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Created byWeb Coding

Last updated 10/2025

English

What you'll learn

Understand the core principles of Object-Oriented Programming (OOP) in PHP
Create and use classes and objects effectively
Apply inheritance to reuse and extend code functionality
Implement interfaces and abstract classes for structured coding
Use traits and namespaces to organize and manage large projects
Connect PHP applications to a database using PDO (PHP Data Objects)
Write secure prepared statements to prevent SQL injection
Perform CRUD operations (Create, Read, Update, Delete) with PDO
Handle database errors and exceptions in a professional way
Learn the differences between PDO and mysqli and why PDO is preferred
Apply input validation and sanitization to secure user data
Protect applications from common threats such as XSS (Cross-Site Scripting)
Understand and mitigate CSRF (Cross-Site Request Forgery) attacks
Use password_hash() and password_verify() for secure password management
Gain confidence in writing scalable, reusable, and maintainable PHP code
Apply intermediate PHP skills to real-world projects and prepare for advanced development

Course content

7 sections • 62 lectures • 11h 0m total length

Introduction8:50

Intro for the Basics of PHP OOP6:20
Important-What is OOP and Why we use it18:59
Classes and Objects9:20
Intro to Properties and Methods15:17
$this Keyword8:10
Master the $this keyword in PHP, which references the current object to access properties and methods inside a class using the object operator to print name and password.
Private Properties12:33
Learn how the private keyword in PHP restricts property access to within a class. Use getters and setters to expose private data with custom logic and a security layer.
Intro to Magic Methods(Constructor and Destructor)14:06

Encapsulation11:35
Intro to Inheritance11:00
Inheritance with Constructors13:09
Inheritance with Overriding Methods10:19
Inheritance with Protected Properties11:07
Polymorphism with Abstract Classes18:18
Polymorphism with Interfaces13:20
Polymorphism with Multiple Interfaces14:02
Static Properties and Methods14:26
Class Constants10:27
Abstraction12:59
Intro to Traits15:51
Intro to Namespaces19:23
Explore how PHP namespaces organize related code and prevent naming collisions, using an example with Apple and LG namespaces and use statements to alias and access classes.

Intro4:48
Installing Sublime3:09
Connectiong to DB with PDO7:27
Learn to connect to a database in PHP using PDO, configuring host, database name, user, and password, selecting the MySQL driver, and testing the connection with a conditional.
Catching Errors7:45
Getting Data with Query and Fetch pt.16:23
Explore querying a database with PHP using the query method, retrieving titles from the posts table via a select statement, and iterating results with a while loop.
Getting Data with Query and Foreach3:57
Learn how to retrieve data from a database in PHP using a query and the foreach loop instead of fetch, including aliasing rows and printing results.
Getting Data with Query and Fetch pt.27:25
Getting Data with FetchColumn5:14
Getting Data with FetchAll9:12
Learn to use fetch all in PHP to retrieve all query rows, choosing associative arrays, index arrays, or objects, then access fields like title and body.
Prepared Statements10:06
Update and Delete9:01
Getting RowCount6:20
Getting LastInsertId3:15
Transactions13:20
Closing the Connection2:50
Like Keyword9:13
IN Keyword9:13

Intro5:15
General Security Tips6:30
Validate and sanitize all user input in PHP and enforce HTTPS. Disable detailed production errors, update to latest versions, use frameworks with password hashing, and follow exploits and experts.
Cross Site Scripting (XSS) and How to Prevent it13:11
Remote File Inclusion pt.116:30
Learn how remote file inclusion occurs in PHP when user input specifies a file, and prevent it with input validation, a whitelist of allowed files, or disabling allow_url_include.
Remote File Inclusion pt.22:01
Hashing Passwords18:59
Error Messages in Production VS Development14:58
Protecting Directory Listings10:27
Disables directory listings by applying an htaccess rule (Options -Indexes) to protect folders like uploads and return a 403 forbidden error.
Redirect with Header With Exit Function10:04
Learn how to correctly redirect in PHP using header and exit, preventing script execution after a redirect and avoiding data leaks.

Why HTTPS is Important for your Web App6:29
Learn why HTTPS encrypts web traffic with SSL/TLS, secures login forms, protects cookies and sessions, and why certificates are essential for secure PHP web apps.
Directories Firewall with Cpanel20:24
Protecting Directories with Htaccess Files and IPs11:34
Prevent Execution of Specific Files with Htaccess11:25
Securing Uploaded Files pt.120:56
Securing Uploaded Files pt.215:18
Why Fixing Error Logs is Important7:01
Fixing log errors preserves security by closing vulnerabilities and preventing sensitive data leaks, while keeping log files clean to protect performance and user experience.
Why Back End Validation Matters15:36
Preventing Session Fixation10:21
Prevent session fixation by regenerating the session ID after login and enforcing HTTPS to protect session IDs from network sniffing.
SQL Injection and How to Prevent it?22:30
What are CSRF Attacks and How to Prevent it?19:51

Requirements

A basic understanding of PHP syntax (variables, loops, functions, arrays)
Familiarity with HTML and basic web development concepts
Very basic knowledge of MySQL databases (helpful but not strictly required)

Description

Are you ready to take your PHP skills to the next level?

This PHP Intermediate Crash Course is designed for students who already understand the basics of PHP and are eager to dive deeper into real-world, professional-level development. In this course, we’ll focus on the three pillars every PHP developer must master: Object-Oriented Programming (OOP), Database Management with PDO, and Secure Coding Practices.

Instead of overwhelming you with theory, this crash course is hands-on, practical, and straight to the point. You’ll learn how to write cleaner, more reusable code using OOP principles like classes, inheritance, interfaces, and traits. These skills will give you the foundation to build scalable and maintainable applications, whether you’re working on a small project or a large web platform.

Next, we’ll dive into databases using PDO (PHP Data Objects). You’ll understand why PDO is the preferred modern approach over mysqli, and you’ll practice making secure, database-driven applications. We’ll cover prepared statements, CRUD operations, and error handling—everything you need to confidently connect PHP with MySQL (and other databases).

Security is non-negotiable in today’s world. That’s why this crash course includes a dedicated section on Secure PHP Programming. You’ll learn how to protect your applications against common vulnerabilities such as SQL Injection, XSS, and CSRF. We’ll also cover input validation, password hashing, and secure session handling, ensuring your applications are safe and production-ready

By the end of this crash course, you’ll not only understand intermediate PHP concepts—you’ll also be able to apply them directly to real-world projects.

What you’ll learn:

Core OOP concepts in PHP and how to implement them
How to use PDO for secure database interactions
Best practices for writing secure PHP applications
Real-world coding exercises to strengthen your skills

Who this course is for:

Students who know PHP basics and want to advance their skills
Beginner developers looking to step into professional-level coding
Anyone interested in learning how to build secure, database-driven PHP applications

Take this crash course today and level up your PHP skills so you’ll be ready for freelance projects, job interviews, or your own startup ideas!

Who this course is for:

PHP beginners who already know the basics and want to level up their skills
Web developers transitioning from procedural PHP to OOP
Students who want to build secure, database-driven applications
Aspiring back-end developers preparing for jobs or internships
Freelancers looking to improve PHP skills for real client projects

What you'll learn

Explore related topics

Course content

Introduction1 lecture • 9min

Installation4 lectures • 13min

PHP OOP Basics Part One7 lectures • 1hr 25min

PHP OOP Basics Part Two13 lectures • 2hr 56min

Working with Databases: PHP PDO Basics17 lectures • 1hr 59min

Secure PHP Programming Part One9 lectures • 1hr 38min

Secure PHP Programming Part Two11 lectures • 2hr 41min

Requirements

Description

Who this course is for: