| 1 | What is dependency injection, and how does it improve the design of PHP applications compared to creating dependencies directly inside a class? PHP › Dependency Injection & Service Containers | PHP | Dependency Injection & Service Containers | Beginner |
| 2 | How does the dependency inversion principle relate to dependency injection, and how does designing around abstractions rather than concrete classes improve long term maintainability? PHP › Dependency Injection & Service Containers | PHP | Dependency Injection & Service Containers | Advanced |
| 3 | What is a service container, and what problem does it solve when an application has many interdependent classes? PHP › Dependency Injection & Service Containers | PHP | Dependency Injection & Service Containers | Beginner |
| 4 | How does autowiring work in a service container, and how does it use type hints to automatically resolve a class's dependencies? PHP › Dependency Injection & Service Containers | PHP | Dependency Injection & Service Containers | Intermediate |
| 5 | How do you bind an interface to a specific concrete implementation within a service container, and why is this a common and valuable pattern? PHP › Dependency Injection & Service Containers | PHP | Dependency Injection & Service Containers | Intermediate |
| 6 | What is the difference between singleton and transient bindings in a service container, and when should each be used? PHP › Dependency Injection & Service Containers | PHP | Dependency Injection & Service Containers | Intermediate |
| 7 | How can overuse of a service container, sometimes called the service locator anti pattern, actually harm code quality despite the container itself being a useful tool? PHP › Dependency Injection & Service Containers | PHP | Dependency Injection & Service Containers | Advanced |
| 8 | What is Symfony's service container, and how does dependency injection work within a typical Symfony application? PHP › Symfony Framework Essentials | PHP | Symfony Framework Essentials | Intermediate |
| 9 | How does Laravel's service container and service providers work together to manage dependency injection and bootstrap an application's various services? PHP › Laravel Framework Essentials | PHP | Laravel Framework Essentials | Advanced |
| 10 | How can closures be used to implement simple dependency injection or callback based customization within a class? PHP › Closures & Anonymous Functions | PHP | Closures & Anonymous Functions | Intermediate |