Wane ne caching da Laravel ke bayarwa?

Question

Accepted Answer

Laravel yana ba da tsarin caching da aka haɗa, mai mahimmanci **caching system** tare da backends da dama (Redis, Memcached, file, database, array) a bayan API ɗaya. Caching yana ajiye sakamakon da suka tsada nauyi don kada a bugi a sake ƙididdige su — ɗaya daga cikin matakai masu tasiri sosai na ingancin aiki.

## Cache API

```php
use Illuminate\Support\Facades\Cache;

Cache::put('key', $value, 3600);          // store for 1 hour (seconds)
Cache::get('key');                         // retrieve (null if missing)
Cache::get('key', 'default');              // with a default
Cache::has('key');
Cache::forget('key');                      // delete (invalidate)
Cache::forever('key', $value);             // store with no expiry
```

## remember() — tsarin get-or-compute (mafi amfani)

```php
// if cached, return it; otherwise run the closure, cache the result, and return it
$users = Cache::remember('active_users', 3600, function () {
    return User::where('active', true)->get();   // expensive query — cached for 1 hour
});
```

`Cache::remember()` shi ne tsari mai kyau, da aka saba: yana dawo da cached value idan akwai, ko kuma yana ƙididdige shi (gudu na closure), caches shi, kuma yana dawo da shi — a kira ɗaya. Lafiya ne don caching sakamakon búrin da suka tsada nauyi.

## Backends da za a daidaita (Redis don production)

```text
config/cache.php → choose the driver:
  redis     → fast, SHARED across servers (production standard for multi-server apps)
  memcached → fast, shared
  file/database → simpler, for smaller/single-server setups
  array     → in-memory, for testing
The SAME Cache API works regardless of backend → easy to switch.
```

API da aka haɗa yana nufin codeɗin ɗaya yana aiki tare da backend na kowa — kuma **Redis** shi ne daidaitattu don production (cache da aka raba tsakanin server instances da dama).

## Cache invalidation (shard nan)

```php
// when data changes, clear the affected cache or it serves stale data
public function updateUser($user, $data) {
    $user->update($data);
    Cache::forget('active_users');     // INVALIDATE so the next read recomputes
}
// strategies: TTL (accept brief staleness), explicit forget on writes, cache tags
Cache::tags(['users'])->flush();        // tagged invalidation (Redis/Memcached)
```

## Me ya sa ya matuwa

Caching shi ne ɗaya daga cikin matakai masu tasiri sosai na ingancin aiki don Laravel applications, kuma tsarin caching da framework ya haɗa, mai mahimmanci, yana sa shi accessible — to sanin sa yana da daraja don gina applications masu sauri, na iya haɗawa.

Ainihin daraja shi ne kauce wa bugi nauyi da aka sake: caching sakamakon slow database queries, ƙididdige na haduf, ko kiran API na waje yana nufin sakamakon requests na gida an yi sauri, yana rage latency da kayo sosai.

Caching na Laravel mai kyau ne, musamman **`Cache::remember()` get-or-compute pattern** (dawo da cached data idan akwai, ko kuma ƙididdige, cache, kuma dawo da shi a kira ɗaya mai tsarki — daidai don caching sakamakon búrin), kuma **API da aka haɗa tsakanin backends** yana nufin codeɗin ɗaya yana aiki tare da kowane driver.
/**Sanin amfani **Redis** don production (cache da aka raba tsakanin server instances da dama — mahimmanci tun da simpler per-server caches ba su raba ba lokacin da ake runjaje a kai jiya) shi ne mahimmin aikacin architecture.

Daidai mahimmanci ne sanin haduf da ta nisa ta caching — **invalidation** (share ko sabunta cached data lokacin da data na asali ya canja, ta hanyar TTLs, sharewa sarari `forget` kan writes, ko cache tags, don kauce wa bayarwa bugun data) — tun lokacin da kuskure a nan shine classic kuskure na caching da yana nuna users tsofaffi ba.

Sanin tsarin caching na Laravel — API, tsarin `remember`, zaɓin backend (Redis don scale), kuma musamman invalidation strategies — shi ne mahimmin ilimin senior-level don gina applications na Laravel da suke da sauri, masu iya haɗawa, tun lokacin da caching yana ba da sakamakon tasiri sosai amma yana buƙaci kula da invalidation don zama daidai.