README.md

PHP Fundamentals

This checklist covers the basic and advanced topics you should know as a PHP developer.

PHP Syntax and Basic Structures

• Variables
• Data Types
• Operators
• Control Structures (if-else, switch)
• Loops (for, while, foreach)

Functions

• Function Definition
• Parameters and Return Values
• Anonymous Functions (Closure)
• Recursive Functions

Arrays

• Array Definition and Usage
• Multidimensional Arrays
• Array Functions (array_map, array_filter, etc.)

Object-Oriented Programming (OOP)

• Classes and Objects
• Inheritance
• Polymorphism
• Encapsulation
• Abstract Classes
• Interfaces
• Traits
• Constructor and Destructor
• Visibility (public, private, protected)
• Static Keyword
• Final Keyword
• Magic Methods (__construct, __destruct, __get, __set, __call, etc.)
• Autoloading (spl_autoload_register)

Database Operations

• Using PDO and MySQLi
• SQL Queries (SELECT, INSERT, UPDATE, DELETE)
• Prepared Statements
• Transaction Management
• ORM (Object-Relational Mapping) Concepts

File and Directory Operations

• File Reading/Writing
• Directory Operations (Creating, Deleting, Listing)
• File Upload

HTTP and Web Development

• $_GET, $_POST, $_FILES, $_SESSION, $_COOKIE
• Header Management
• Form Handling
• JSON Operations
• Using cURL
• Developing and Consuming RESTful APIs

Error Handling

• Try-Catch Blocks
• Exception Handling
• Creating Custom Exceptions
• Error Reporting Levels

Security

• SQL Injection Prevention
• XSS (Cross-Site Scripting) Prevention
• CSRF (Cross-Site Request Forgery) Prevention
• Password Hashing (password_hash, password_verify)
• Secure Session Management

Advanced PHP Topics

• Using Composer
• Dependency Injection
• PSR Standards
• Namespaces
• Design Patterns (Singleton, Factory, Observer, etc.)
• Introduction to Frameworks (Laravel, Symfony)