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  • The Liskov Substitution Principle
    The Liskov Substitution Principle
    Core points Liskov Substitution Principle (LSP) is a key concept in object-oriented programming that ensures that subclasses can replace their base class abstractions without breaking the contract with client code. It maintains the integrity of the system design and is crucial to the reusability of the code. When overriding a method in a subclass, certain requirements must be met: its signature must match the signature of the parent class; its prerequisites must be the same or weaker; its postconditions must be the same or stronger; and exceptions (if any) must be the same as the exception type thrown by the parent class. Breaking LSP can lead to unintelligible behavior and errors that are difficult to track. It also makes the code harder to maintain and extend, because the assumption that a subclass can replace its superclass is no longer true. Method rewriting does not always violate LSP
    PHP Tutorial . Backend Development 930 2025-03-01 08:47:09
  • PHP Master | Cloud-Hosted PostgreSQL: Heroku Postgres
    PHP Master | Cloud-Hosted PostgreSQL: Heroku Postgres
    Heroku Postgres: A Seamless PostgreSQL Experience in the Cloud This article explores Heroku Postgres, a managed PostgreSQL database service, highlighting its benefits, setup, and integration with PHP. Developers can focus on application logic rather
    PHP Tutorial . Backend Development 302 2025-03-01 08:46:09
  • Under the Hood of Yii's Component Architecture, Part 2
    Under the Hood of Yii's Component Architecture, Part 2
    This article continues our exploration of Yii Framework's CComponent class, focusing on event-driven programming in PHP. This is part 2 of a three-part series demonstrating how Yii leverages a component-based architecture to manage properties, confi
    PHP Tutorial . Backend Development 1072 2025-03-01 08:38:13
  • Writing Custom Session Handlers
    Writing Custom Session Handlers
    PHP sessions solve the inherent statelessness of the web, enabling features like shopping carts, website visit tracking, and user navigation monitoring. While PHP's default session handling suffices in most cases, custom solutions offer expanded fun
    PHP Tutorial . Backend Development 1107 2025-03-01 08:30:11
  • Rapid Application Development with CakePHP
    Rapid Application Development with CakePHP
    CakePHP: A Rapid Application Development Framework for PHP CakePHP is a powerful PHP framework ideal for building web applications quickly and efficiently. Its Model-View-Controller (MVC) architecture and "convention over configuration" ph
    PHP Tutorial . Backend Development 589 2025-03-01 08:26:10
  • Understand Arrays in PHP
    Understand Arrays in PHP
    This tutorial provides a foundational understanding of PHP arrays. We'll cover array creation, associative and multidimensional arrays, and illustrate their usage with practical examples. What are PHP Arrays? In PHP, an array is a versatile data str
    PHP Tutorial . Backend Development 978 2025-02-28 10:53:09
  • 6 Extra Skills Every PHP Developer Should Have
    6 Extra Skills Every PHP Developer Should Have
    PHP development is booming, but competition is fierce. To thrive as a freelance or independent PHP developer, you need more than just PHP expertise. Here are six crucial skills to boost your success: Key Takeaways: A successful PHP developer needs
    PHP Tutorial . Backend Development 370 2025-02-28 10:52:10
  • HTML Parsing and Screen Scraping With the Simple HTML DOM Library
    HTML Parsing and Screen Scraping With the Simple HTML DOM Library
    This tutorial demonstrates how to efficiently parse HTML using an open-source parser, avoiding the complexities of regular expressions. We'll scrape Envato Tuts as an example, extracting article titles and descriptions. This is for illustrative pu
    PHP Tutorial . Backend Development 999 2025-02-28 10:50:16
  • Object-Oriented PHP With Classes and Objects
    Object-Oriented PHP With Classes and Objects
    In this article, we're going to explore the basics of object-oriented programming using PHP classes.We'll start with an introduction to classes and objects, and we'll discuss a couple of advanced concepts like inheritance and polymorphism in the latt
    PHP Tutorial . Backend Development 874 2025-02-28 10:47:18
  • Taking Advantage of PHP's Built-in Server
    Taking Advantage of PHP's Built-in Server
    PHP 5.4 built-in web server: simplify development and testing PHP 5.4 introduces a built-in web server designed for development and testing, allowing developers to write and test code without the need for a full LAMP configuration. This server can also be used to distribute portable web applications on CD-ROM, USB drive, or as desktop applications. Key points: The PHP built-in server is not used in production environments, and the PHP manual recommends not to use it in production environments. This server is best for development and testing, can be started from the command line, used to test the code, and shut down when done. To use the built-in server, PHP 5.4 or higher must be installed. It can be created by creating a basic index
    PHP Tutorial . Backend Development 1146 2025-02-28 10:17:20
  • Using Traits in PHP 5.4
    Using Traits in PHP 5.4
    Guide to using Traits in PHP 5.4 Core points The Traits mechanism introduced in PHP 5.4 allows horizontal reuse of code between independent classes of inheritance hierarchy, solving the limitations of single inheritance and reducing code duplication. A single class can use multiple Traits, and Traits can also be composed of other Traits, enabling a flexible and modular way of organizing code. Use instead keyword to resolve conflicts between Traits with the same method name, or use the as keyword to create method alias. Traits can access private properties or methods of a combined class, and vice versa, and even
    PHP Tutorial . Backend Development 484 2025-02-28 10:15:55
  • Build a Shopping Cart With PHP and MySQL
    Build a Shopping Cart With PHP and MySQL
    Top 5 PHP Shopping Cart Scripts for 2021 & a DIY Guide Need a quick e-commerce solution? Envato Market offers numerous premium PHP shopping cart scripts. Here are five standouts. 5 Premium PHP Shopping Cart Solutions from CodeCanyon Before divi
    PHP Tutorial . Backend Development 444 2025-02-28 10:06:11
  • How to Create a Simple Event Calendar for Your PHP Website
    How to Create a Simple Event Calendar for Your PHP Website
    In this post, we’re going to review Ajax Full Featured Calendar 2 from CodeCanyon. This script allows you to add calendars to your PHP website. It’s a ready-to-use tool which you can integrate in your existing PHP website and start using today!If you
    PHP Tutorial . Backend Development 380 2025-02-28 09:55:11
  • Building a Domain Model - An Introduction to Persistence Agnosticism
    Building a Domain Model - An Introduction to Persistence Agnosticism
    Key Concepts This article champions the Domain Model as a crucial, persistence-agnostic layer in software architecture. It emphasizes the clear definition of interactions between entities, focusing on data and behavior independent of the underlying
    PHP Tutorial . Backend Development 636 2025-02-28 09:47:14

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