LARAVEL Research & Evidence-Based Practice 4 — Questions and Answers
Question 1: When research shows an application sends too many redundant HTTP requests to external APIs, which Laravel method caches the response with automatic TTL expiration?
- DB::remember()
- Cache::remember() (Correct answer)
- Http::withOptions()
- Response::cache()
Correct answer: Cache::remember()
Cache::remember() retrieves a cached value or executes a callback and stores the result for a given TTL.
Question 2: Which Laravel Telescope watcher should be enabled when researching unexpected Eloquent model state changes across a request lifecycle?
- QueryWatcher
- ModelWatcher (Correct answer)
- EventWatcher
- GateWatcher
Correct answer: ModelWatcher
Telescope's ModelWatcher records Eloquent model events (created, updated, deleted), revealing unexpected state mutations.
Question 3: According to Laravel's documentation on HTTP testing, which method puts the Http facade into a mode that prevents real outbound requests during tests?
- Http::mock()
- Http::fake() (Correct answer)
- Http::intercept()
- Http::stub()
Correct answer: Http::fake()
Http::fake() prevents actual HTTP requests and allows you to define stub responses for specific URL patterns.
Question 4: When profiling reveals slow Eloquent queries, which method inspects the raw SQL Eloquent will generate without actually executing the query?
- ->dump()
- ->toRawSql()
- ->dd()
- ->toSql() (Correct answer)
Correct answer: ->toSql()
->toSql() returns the raw SQL string with question-mark placeholders for bindings without executing the query.
Question 5: Which Laravel package performs static analysis to detect bugs, wrong type hints, and undefined variables without running the application?
- PHP_CodeSniffer
- Larastan (nunomaduro/larastan) (Correct answer)
- PHP Mess Detector
- Pint
Correct answer: Larastan (nunomaduro/larastan)
Larastan extends PHPStan with Laravel-specific rules, performing deep static analysis without executing the application.
Question 6: Which artisan command gives a high-level overview of the application's environment, loaded configuration, cache status, and installed packages?
- php artisan model:show
- php artisan make:inspect
- php artisan config:list
- php artisan about (Correct answer)
Correct answer: php artisan about
`php artisan about` shows environment, cache, drivers, and package information about the current Laravel installation.
Question 7: When researching test coverage for a Laravel application using Pest, which flag generates an HTML coverage report in a specified directory?
- --coverage-html=reports/ (Correct answer)
- --html-report=reports/
- --report html reports/
- --coverage-report html
Correct answer: --coverage-html=reports/
Running `./vendor/bin/pest --coverage-html=reports/` generates an HTML coverage report in the specified directory.
LARAVEL Research & Evidence-Based Practice 4
When research shows an application sends too many redundant HTTP requests to external APIs, which Laravel method caches the response with automatic TTL expiration?