Quality terms
Because working code and good code are not the same thing
Code that works today but cannot be understood, tested, or modified tomorrow is a liability, not an asset. Code quality covers metrics, static analysis, design principles like SOLID and DRY, refactoring techniques, and the habits that separate codebases teams love from ones they dread maintaining. Good quality is not about perfection — it is about making the next change easier than the last.
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Most referenced — Code Quality
Type Safety in PHP (strict_types & Static Analysis) 2Interface Segregation Principle 2KISS Principle 2Dead Code 2Builder Pattern 2Transaction Script Pattern 2Data Transfer Object (DTO) 1Fluent Builder Pattern 1
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Category total2.7k pings
Terms pinged113 / 113
Distinct agents12
Coupling
The degree to which one module depends on another; high coupling makes changes expensive and testing difficult.
2mo ago
quality intermediate
Cyclomatic Complexity
A count of linearly independent paths through a function — each if, for, while, case, and && adds 1.
2mo ago
quality intermediate
Data Clump
The same group of variables appearing together repeatedly — a signal they belong in a class together.
2mo ago
quality intermediate
Data Transfer Object (DTO) PHP 8.0+
A simple object that carries data between layers or systems with no business logic — reducing coupling between layers and making data contracts explicit.
2mo ago
quality intermediate
Dead Code PHP 5.0+
Code that can never be executed — unreachable after a return, or inside a condition that is always false.
2mo ago
quality beginner
Dead Code Detection PHP 7.1+
Identifying code that can never be executed — unreachable branches, always-true conditions, unused variables — via static analysis or coverage reports.
2mo ago
quality intermediate
Defensive Programming
Writing code that anticipates and handles invalid inputs, unexpected states, and failures gracefully.
2mo ago
quality intermediate
Design by Contract
Methods define formal preconditions (what callers must guarantee), postconditions (what the method guarantees), and invariants (what's always true).
2mo ago
quality advanced
Divergent Change
One class changes for many different reasons — a sign it has too many responsibilities.
2mo ago
quality intermediate
Duplicate Code PHP 5.0+
Identical or near-identical blocks of code in multiple places — the most common source of maintenance bugs.
2mo ago
quality beginner
Facade Pattern PHP 5.0+
Provides a simplified, unified interface to a complex subsystem, hiding its internal complexity from clients.
2mo ago
quality beginner
Fail Fast Principle
Detect and report errors at the earliest possible point rather than allowing invalid state to propagate and cause confusing failures elsewhere.
2mo ago
quality beginner
Fan-In / Fan-Out
Fan-in measures how many modules call a given module; fan-out measures how many modules it calls — high fan-out indicates high coupling.
2mo ago
quality intermediate
Feature Envy PHP 5.0+
A method that accesses the data of another class more than its own — suggesting it belongs in that other class.
2mo ago
quality intermediate
Feature Flag / Feature Toggle PHP 5.0+
A runtime switch that enables or disables features without deploying new code, decoupling deployment from release.
2mo ago
quality beginner
Fixing Primitive Obsession with Value Objects
Replacing raw strings, ints, and floats representing domain concepts with dedicated Value Object classes that enforce invariants at construction.
2mo ago
quality intermediate
Flyweight Pattern
A structural pattern that shares common state between many objects rather than storing it in each instance — dramatically reducing memory for large numbers of similar objects.
2mo ago
quality advanced
God Class PHP 5.0+
A class that knows too much and does too much — violating the Single Responsibility Principle.
2mo ago
quality intermediate
Halstead Maintainability Index
A composite metric (0–100) combining lines of code, cyclomatic complexity, and Halstead volume to estimate maintainability.
2mo ago
quality advanced
Inappropriate Intimacy
Two classes that access each other's private fields and internals too freely, creating tight bidirectional coupling.
2mo ago
quality intermediate