You want to create a PHP class that must implement a method connect() defined by an interface, share common code for disconnect() from an abstract class, and reuse logging code from a trait. Which is the best way to design this?
ACreate an interface with connect() and disconnect(), a trait with logging, and a class that extends the interface and uses the trait.
BCreate an interface with connect(), an abstract class with disconnect(), a trait with logging, then a class that implements the interface, extends the abstract class, and uses the trait.
CCreate an abstract class with connect() and disconnect(), a trait with logging, and a class that implements the trait and extends the interface.
DCreate a trait with connect() and disconnect(), an abstract class with logging, and a class that extends the trait and implements the abstract class.
Step-by-Step Solution
Solution:
Step 1: Understand roles of interface, abstract class, and trait
Interface defines required methods like connect(). Abstract class can provide shared code like disconnect(). Trait is for reusable code like logging.
Step 2: Combine them correctly in a class
PHP allows a class to implement interfaces, extend one abstract class, and use multiple traits. So the class should implement the interface, extend the abstract class, and use the trait.
Final Answer:
Create an interface with connect(), an abstract class with disconnect(), a trait with logging, then a class that implements the interface, extends the abstract class, and uses the trait. -> Option B
Quick Check:
Interface + abstract class + trait combined properly [OK]
Quick Trick:Interface for methods, abstract class for code, trait for reuse [OK]
Common Mistakes:
Trying to extend multiple classes
Confusing trait and abstract class roles
Extending interface instead of implementing
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