[Solved] What will be the output of this code?interface Status { const OK = 1; } class Response implements Status { public function getStatus() { return Status::OK; } } $response = new Response();... | PHP

PHP - Interfaces and Traits

What will be the output of this code?

interface Status {
  const OK = 1;
}
class Response implements Status {
  public function getStatus() {
    return Status::OK;
  }
}
$response = new Response();
echo $response->getStatus();

AStatus::OK

BError: Cannot access constant

C1

Dnull

Step-by-Step Solution

Solution:

Step 1: Access interface constant using interface name
Inside getStatus(), Status::OK correctly accesses the constant value 1.
Step 2: Echo the returned value
Calling getStatus() returns 1, which is printed by echo.
Final Answer:
1 -> Option C
Quick Check:
Interface constants accessed by InterfaceName::CONSTANT [OK]

Quick Trick: Use InterfaceName::CONSTANT to access constants inside methods [OK]

Common Mistakes:

Expecting error accessing interface constant
Using $this::OK instead of Status::OK
Confusing constant with string

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What will be the output of this code?

Step 1: Access interface constant using interface name

Step 2: Echo the returned value

Final Answer:

Quick Check:

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