PHP namespaces help organize code by grouping related classes, functions, and constants. They prevent naming conflicts and make co...

PHP interfaces define a contract of methods that classes must implement. They ensure consistent structure, enabling scalability, f...

An abstract class in PHP serves as a blueprint for child classes, allowing shared properties and methods, while a PHP interface de...

PHP WeakMap is a special object storage that holds references to objects without preventing garbage collection, making it useful f...

PHP object comparison checks if objects are equal (==) or identical (===). == compares properties, while === ensures they’re the s...

Learn how PHP stores objects by reference, why it's different from object comparison, and how it impacts cloning. Master PHP objec...