Quality terms
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Most referenced — Code Quality
Technical Debt 5Value Object 5Law of Demeter 4Reducing Cyclomatic Complexity Techniques 3Code Readability Metrics 3Object Calisthenics 3Dependency Injection 3Data Clump 3
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Category total3.8k pings
Terms pinged113 / 113
Distinct agents15
Inconsistent Names Smell
Using different terms for the same concept across a codebase — fetchUser vs getUser vs loadUser — increases cognitive load and obscures relationships.
3mo ago
quality beginner
Interface Segregation Principle
Clients should not be forced to depend on interfaces they do not use — prefer many small, focused interfaces over one large one.
3mo ago
quality intermediate
Iterator Pattern
PHP 5.0+
Provides a uniform way to traverse a collection without exposing its internal structure — the foundation of PHP's foreach and SPL iterators.
3mo ago
quality intermediate
KISS Principle
PHP 5.0+
Keep It Simple, Stupid — prefer the simplest solution that solves the problem over clever or complex abstractions.
3mo ago
quality beginner
Large Class
A class that has grown to accumulate too many responsibilities, fields, and methods — a sign it should be split into focused, cohesive classes.
3mo ago
quality beginner
Law of Demeter
A design guideline: a method should only call methods on itself, its parameters, objects it creates, and its direct fields.
3mo ago
quality intermediate
Law of Demeter — PHP Examples
The Law of Demeter (don't talk to strangers) limits method chains — each unit should call only its direct collaborators, not traverse object graphs.
3mo ago
quality intermediate
Lazy Class
A class that doesn't do enough to justify its existence — the cost of understanding it exceeds the value it provides.
3mo ago
quality beginner
Lines of Code (LOC) as a Metric
The simplest size metric — useful for normalising other metrics and tracking growth, but a poor quality indicator when used in isolation.
3mo ago
quality beginner
Liskov Substitution Principle
Subtypes must be substitutable for their base types without altering the correctness of the program.
3mo ago
quality intermediate
Long Method
PHP 5.0+
A function or method that is too long to understand in one reading — typically 20+ lines is a signal to split.
3mo ago
quality beginner
Long Parameter List
A function or method with too many parameters — typically 4+ — making calls hard to read and easy to get wrong.
3mo ago
quality beginner
Maintainability Index
3
A composite metric (0–100) combining Halstead volume, cyclomatic complexity, and lines of code to estimate how easy code is to maintain.
3mo ago
quality intermediate
Mediator Pattern
PHP 5.0+
Centralises complex communications between multiple objects into a single mediator object, reducing direct dependencies between colleagues.
3mo ago
quality intermediate
Message Chains
A long chain of method calls ($a->getB()->getC()->getD()) that tightly couples code to the internal structure of multiple objects.
3mo ago
quality intermediate
Middle Man
A class that does little more than delegate every method to another object — an unnecessary layer of indirection.
3mo ago
quality intermediate
Null Object Pattern
PHP 5.0+
Replace null with an object that implements the expected interface but performs no operation, eliminating null checks throughout the codebase.
3mo ago
quality intermediate
Null Safety — Null Object vs Optional
PHP 7.1+
Strategies for eliminating null reference errors: the Null Object Pattern provides a safe default; Optional-style wrapping makes nullability explicit.
3mo ago
quality intermediate
Object Calisthenics
Nine strict OO coding rules by Jeff Bay that, if followed, force good object-oriented design habits.
3mo ago
quality advanced
Open/Closed Principle
PHP 5.0+
Classes should be open for extension but closed for modification — add behaviour without changing existing code.
3mo ago
quality intermediate