Tutorial posts from the Software Engineering Laboratory.
A hands-on guide to refactoring working-but-messy PHP into clean, maintainable code. Learn to recognize nine common code smells, apply five core refactorings with runnable before-and-after examples, and refactor a grade calculator step by step, safely and without changing behaviour.
Read more →A systematic, hands-on introduction to the five SOLID design principles for PHP developers. Learn Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion with concrete before-and-after refactorings, smell checklists, and a complete Laravel invoice-processing example that combines them.
Read more →Learn how software engineering fundamentals adapt to startup environments where speed, validated learning, and lean MVPs matter more than perfect architecture. This tutorial walks through building a startup idea validation dashboard with PHP, covering wait-list management, analytics hooks, rapid validation techniques, and practical deployment strategies.
Read more →A comprehensive guide to Event-Driven Architecture (EDA) for PHP developers. Learn why synchronous call chains break at scale, how events decouple services, the core patterns (Pub/Sub, Event Sourcing, Saga), and runnable PHP implementations using Laravel events, RabbitMQ, and Redis Streams, with idempotency, retries, and dead-letter queue strategies throughout.
Read more →A comprehensive guide to designing RESTful APIs with PHP. Learn REST constraints, resource modelling, HTTP verbs, status codes, pagination, authentication, and versioning, then build a complete course-registration API with Laravel that you can run and test today.
Read more →Part 1 of the Skripsi Mini Series. Learn how to write Chapter 1: Introduction (BAB I: Pendahuluan) of a Polinema thesis (skripsi), covering Background, Research Questions, Scope and Limitations, Objectives, and Significance, using a simple Laravel Todo app that evaluates the Action Pattern as the running example.
Read more →Part 2 of the Skripsi Mini Series. Learn how to write Chapter 2: Literature Review (BAB II: Landasan Teori): running a real Literature Study (Studi Literatur), avoiding plagiarism, and building the Theoretical Basis (Dasar Teori) that grounds our Laravel Action Pattern comparison in existing knowledge.
Read more →Part 3 of the Skripsi Mini Series. Learn how to write Chapter 3: Development Methodology (BAB III: Metodologi Pengembangan): choosing a development method, drawing the Research Flow (Alur Penelitian), and precisely defining metrics and instruments, with a week-by-week timeline to finish on time.
Read more →Part 4 of the Skripsi Mini Series. Learn how to write Chapter 4: System Analysis and Design (BAB IV: Analisis dan Perancangan Sistem): requirements analysis, UI wireframes, and a full UML design for our Action Pattern implementation, with the Fat Controller alternative shown as a clearly labelled conceptual contrast.
Read more →Part 5 of the Skripsi Mini Series. Learn how to write Chapter 5: Implementation and Testing: setting up the environment, implementing the database, writing the PHP code for the Action Pattern implementation, documenting prototype iterations, and running Black Box and unit tests.
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