Which of the following is the correct way to inject a service into a Laravel controller constructor?

easy📝 Syntax Q12 of 15

Laravel - Controllers

Apublic function __construct($service) { $this->service = new Service(); }

Bpublic function __construct(Service $service) { $this->service = $service; }

Cpublic function __construct() { $this->service = Service::class; }

Dpublic function __construct(Service $service) { $service = new Service(); }

Step-by-Step Solution

Solution:

Step 1: Check constructor parameter type hinting
public function __construct(Service $service) { $this->service = $service; } correctly type hints the Service class in the constructor parameter.
Step 2: Verify assignment to class property
public function __construct(Service $service) { $this->service = $service; } assigns the injected service to a class property for later use, which is correct.
Final Answer:
public function __construct(Service $service) { $this->service = $service; } -> Option B
Quick Check:
Constructor injection = type hint + assign property [OK]

Quick Trick: Type hint service in constructor and assign to property [OK]

Common Mistakes:

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