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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Diagram: Two-Phase Commit (2PC) Two-Phase Commit (2PC)
A distributed transaction protocol ensuring all nodes commit or all roll back — providing strong atomicity across multiple databases.
3mo ago Architecture advanced
Types of Cohesion
Cohesion grades from Coincidental (worst — random grouping) to Functional (best — single well-defined purpose), guiding module design decisions.
3mo ago Code Quality advanced
Types of Coupling
Coupling grades from Content (worst — direct internal access) to Message (best — pure interface communication), guiding decoupling decisions.
3mo ago Code Quality advanced
Types of Technical Debt
Technical debt is not uniform — deliberate vs inadvertent, reckless vs prudent quadrants define the nature of debt and the appropriate response to each type.
3mo ago Code Quality intermediate
Ubiquitous Language (DDD) 🧠 2
A shared vocabulary between developers and domain experts, used consistently in code, tests, documentation, and conversation.
3mo ago Architecture intermediate
Unit of Work
A pattern that tracks all changes made to domain objects during a business transaction and coordinates writing them out as a single atomic database operation.
3mo ago Code Quality advanced
UUID vs Auto-Increment IDs 🧠 1
UUIDs are globally unique identifiers that don't expose record counts or enable enumeration, at the cost of larger index size and random writes.
3mo ago General beginner
Webhooks PHP 5.0+
A reverse API — a service POSTs event notifications to a registered URL whenever something occurs, eliminating the need to poll.
3mo ago Architecture beginner
WebSockets PHP 7.0+ 🧠 1
A persistent full-duplex TCP connection enabling real-time bidirectional messaging between browser and server without polling overhead.
3mo ago Architecture intermediate
Zero Trust PHP 5.0+ 🧠 2
Never trust, always verify — authenticate and authorise every request regardless of network location.
3mo ago General intermediate
Diagram: Dependency Injection Dependency Injection PHP 5.0+ 🧠 3
Passing dependencies into a class rather than creating them inside — makes classes testable and loosely coupled.
3mo ago Code Quality intermediate
Diagram: Repository Pattern Repository Pattern PHP 5.0+ 🧠 2
Abstracts the data persistence layer behind an interface, decoupling domain logic from database implementation details.
3mo ago General intermediate
✓ schema.org compliant