Tag: oop
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Most referenced — #oop
Observer Pattern 3PHP 5 OOP Revolution — Objects by Reference 2Abstract readonly Properties 2Adapter Pattern 2Interface Segregation Principle 2Builder Pattern 2Data Transfer Object (DTO) 1Fluent Builder Pattern 1
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#[Override] Attribute (PHP 8.3) PHP 8.3+
The #[Override] attribute tells PHP (and static analysers) that a method is intentionally overriding a parent class or interface method — if no such method exists in a parent, PHP throws an error at class load time.
2mo ago
php intermediate
Abstract readonly Properties PHP 8.4+
PHP 8.4 allows abstract readonly properties in abstract classes and interfaces — defining that implementations must provide a readonly property of a specific type.
2mo ago
php advanced
Extract Class Refactoring
Extract Class splits a large class into two — moving a cohesive subset of fields and methods into a new class that the original delegates to.
2mo ago
quality intermediate
Global Function Style vs OOP Evolution PHP 4.0+
PHP 4's procedural global-function style evolved into PHP 5 OOP — understanding the transition explains why modern PHP has both paradigms and how to migrate legacy procedural code.
2mo ago
php beginner
Late Static Binding — PHP 5.3 Feature PHP 5.3+
static:: (Late Static Binding, PHP 5.3) refers to the called class at runtime — unlike self:: which always refers to the class where the method is defined.
2mo ago
php intermediate
Method Chaining Pitfalls & Alternatives
Method chaining (fluent interfaces) improves readability for builders but creates debugging difficulties, encourages temporal coupling, and can hide null returns.
2mo ago
quality intermediate
new in Initializers (PHP 8.4) PHP 8.4+
PHP 8.4 allows 'new ClassName()' expressions in default parameter values, attribute arguments, and static property initialisers — removing the need for null defaults combined with late assignment in constructors.
2mo ago
php intermediate
Property Hooks (PHP 8.4) PHP 8.4+
PHP 8.4 property hooks add get and set accessors directly to property declarations — eliminating the need for explicit getter/setter methods on simple value objects.
2mo ago
php advanced
Traits — Horizontal Reuse (PHP 5.4) PHP 5.4+
PHP 5.4 traits enable horizontal code reuse — mixins for PHP classes that can't use multiple inheritance. Use sparingly; prefer composition over trait overuse.
2mo ago
php intermediate
Object Cloning & Security Implications PHP 5.0+
clone creates a shallow copy — nested objects are still shared references. Implement __clone() for deep copy and audit what sensitive state gets duplicated.
2mo ago
security intermediate
PHP 5 OOP Revolution — Objects by Reference PHP 5.0+
PHP 5 completely replaced PHP 4's object model — objects became reference-counted handles rather than copies, enabling true OOP with interfaces, abstract classes, visibility, and exceptions.
2mo ago
php intermediate
ES6 Class Syntax ES2015
ES6 classes are syntactic sugar over prototypal inheritance — the keywords mirror PHP but the underlying mechanism is different.
2mo ago
javascript intermediate
__slots__ & Memory Optimisation Python 3.0+
Declaring __slots__ on a class prevents the dynamic __dict__ per instance — reducing memory usage by 40-60% for classes with many instances.
2mo ago
python intermediate
Abstract Factory Pattern PHP 5.0+
Creates families of related objects ensuring they are used together consistently without mixing implementations.
2mo ago
quality intermediate
Active Record Pattern PHP 5.0+
A design pattern where a database row is wrapped in an object that includes both the data and the persistence logic — the object knows how to save, update, and delete itself.
2mo ago
quality intermediate
Asymmetric Visibility (PHP 8.4) PHP 8.4+
PHP 8.4 allows separate read and write visibility on properties — public(get) private(set) means anyone can read but only the class can write.
2mo ago
php intermediate
Domain Model Pattern
An object model of the domain that incorporates both behaviour and data — entities with methods expressing domain operations rather than just data containers.
2mo ago
quality advanced
Fluent Builder Pattern
Returns $this from each setter enabling method chaining — used in query builders, test factories, and configuration objects.
2mo ago
quality intermediate
Gateway Pattern
A class that encapsulates access to an external system or resource — wrapping HTTP APIs, queues, or legacy systems behind a clean interface that the rest of the application uses.
2mo ago
quality intermediate
Global Variable Abuse PHP 5.0+
Using global variables or the global keyword to share state between functions — making code unpredictable, untestable, and impossible to reason about.
2mo ago
quality intermediate