PHP Professional Standards & Competencies 3

Question 1

What is the role of a CI/CD pipeline in professional PHP development?

Accepted Answer

Automatically build, test, and deploy code on every change to catch regressions early

Answer

A CI/CD pipeline automates running tests, linters, and static analysis on every commit, and can automate deployment when checks pass.

Question 2

Which HTTP method should a professional PHP developer use for an idempotent delete operation in a REST API?

Accepted Answer

DELETE

Answer

The DELETE method is the semantically correct HTTP verb for removing resources; it is also expected to be idempotent.

Question 3

What is the professional purpose of code reviews in a PHP team?

Accepted Answer

To catch defects, share knowledge, and enforce coding standards before code merges

Answer

Code reviews spread institutional knowledge, catch logic errors, and ensure adherence to project conventions before code enters the main branch.

Question 4

When deprecating a public method in a PHP library, what is the professional standard approach?

Accepted Answer

Add a `@deprecated` docblock tag and trigger a deprecation notice, then remove it in the next major version

Answer

Adding `@deprecated` and a `trigger_error()` deprecation notice gives consumers time to migrate before the method is removed in a breaking major release.

Question 5

Which of the following is a key benefit of using Dependency Injection (DI) in PHP applications?

Accepted Answer

It makes classes easier to test by supplying dependencies from outside rather than creating them internally

Answer

DI allows test doubles (mocks/stubs) to be injected in place of real dependencies, making unit testing straightforward.

PHP - PHP Programming Language Practice Test

PHP - PHP Programming Language Practice Test

PHP Professional Standards & Competencies 3