# Caching (Laravel)

> 캐시 설정, cache drivers, 저장, 검색, cache tags, cache events, cache helpers, 쿼리 캐싱

- 18 면접 질문
- Mid-Level
- [면접 질문: Laravel](https://sharpskill.dev/ko/technologies/laravel/interview-questions.md)

## 1. Laravel의 캐시 시스템이란 무엇입니까?

**답변**

Laravel 캐시는 계산 비용이 큰 데이터를 일시적으로 저장하여 애플리케이션 성능을 향상시킬 수 있습니다. Laravel은 다양한 캐시 백엔드(Redis, Memcached, file, database, array)에 대해 통합된 API를 제공합니다. 캐싱은 반복적인 데이터베이스 쿼리를 줄이고 결과를 메모리나 디스크에 보관하여 응답 시간을 단축합니다.

## 2. Laravel에서 지원하는 cache drivers는 무엇입니까?

**답변**

Laravel은 여러 cache drivers를 지원합니다: file(디스크 저장), database(전용 테이블), Redis(빠른 in-memory), Memcached(분산 in-memory), DynamoDB(cloud), array(메모리 내, 테스트 전용), null(캐싱 없음). 각 driver는 특정 사용 사례가 있습니다: 성능에는 Redis, 단순함에는 file, 외부 의존성을 피하려면 database, 테스트에는 array.

## 3. 값을 60초 동안 캐시에 저장하려면 어떻게 합니까?

**답변**

Cache::put('key', 'value', 60)을 사용하면 60초의 수명으로 값을 저장합니다. 첫 번째 매개변수는 고유 키, 두 번째는 값(배열, 객체, 문자열 가능), 세 번째는 초 단위 기간입니다. 만료 후 키는 캐시에서 자동으로 제거됩니다.

## 15개 추가 질문 이용 가능

- 기본값과 함께 캐시에서 값을 가져오려면 어떻게 합니까?
- Cache::get()에 비해 Cache::remember()의 장점은 무엇입니까?

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