Ultimate Laravel Flashcards

In Laravel's queue system, what happens to a job when its `tries` limit is exceeded?

Answer: It is moved to the 'failed_jobs' table

After all retry attempts are exhausted, Laravel moves the failed job's payload to the `failed_jobs` database table for inspection.

Which HTTP verb does a Laravel resource route use for the `update` action?

Answer: PUT or PATCH

Laravel resource routing maps both `PUT` and `PATCH` requests to the `update` controller action, with `PATCH` for partial updates.

What is the purpose of Laravel Sanctum compared to Laravel Passport?

Answer: Sanctum provides lightweight token and SPA authentication; Passport is full OAuth2 server

Sanctum is a simple, lightweight package for SPA cookies and API tokens, while Passport implements a full OAuth2 server for third-party token issuance.

Which Blade directive is used to escape and output a variable to prevent XSS?

Answer: {{ $variable }}

Double curly braces `{{ }}` automatically run `htmlspecialchars` on the value, while `{!! !!}` outputs raw unescaped HTML.

In Laravel, what does the `DB::transaction()` method guarantee when an exception is thrown inside its callback?

Answer: All database operations inside the callback are rolled back automatically

If any exception is thrown inside `DB::transaction()`, Laravel automatically rolls back all queries executed within that callback.

Which Laravel testing method asserts that a specific job was pushed onto a queue during a test?

Answer: Queue::assertPushed() and Bus::assertDispatched() both work depending on facade used

`Queue::assertPushed()` works after `Queue::fake()` and `Bus::assertDispatched()` works after `Bus::fake()`, both verifying job dispatch in tests.

What is the purpose of the `RetryUntil` method (or `$retryUntil` property) on a queued job class?

Answer: Specifies the absolute DateTime after which the job should no longer be retried

`retryUntil()` returns a `DateTime` instance; Laravel will not retry the job after that point in time, regardless of the `tries` count.