<?php
use Illuminate\Support\Facades\Cache;
// Remember pattern - fetch from cache or execute closure
$posts = Cache::remember('posts.all', 3600, function () {
return Post::with('author')->published()->get();
});
// Cache forever
Cache::forever('settings', $settings);
// Put value with TTL
Cache::put('key', 'value', now()->addMinutes(10));
// Get with default
$value = Cache::get('key', 'default');
// Get and delete
$value = Cache::pull('key');
// Check existence
if (Cache::has('key')) {
// ...
}
// Increment/decrement
Cache::increment('post:views:' . $postId);
Cache::decrement('inventory:' . $productId, 5);
// Delete
Cache::forget('key');
// Clear all cache
Cache::flush();
<?php
use Illuminate\Support\Facades\Cache;
// Cache with tags (Redis/Memcached only)
Cache::tags(['posts', 'featured'])->put('posts.featured', $posts, 3600);
$posts = Cache::tags(['posts'])->remember('posts.recent', 3600, function () {
return Post::latest()->take(10)->get();
});
// Invalidate all items with tag
Cache::tags(['posts'])->flush();
// Multiple tags
Cache::tags(['posts', 'author:' . $authorId])->flush();
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Cache;
class Post extends Model
{
protected static function booted(): void
{
// Clear cache when model changes
static::saved(function ($post) {
Cache::tags(['posts'])->flush();
Cache::forget('post:' . $post->id);
});
static::deleted(function ($post) {
Cache::tags(['posts'])->flush();
Cache::forget('post:' . $post->id);
});
}
public static function getCached(int $id): ?self
{
return Cache::remember("post:{$id}", 3600, function () use ($id) {
return static::with(['author', 'tags'])->find($id);
});
}
public static function allCached()
{
return Cache::tags(['posts'])->remember('posts.all', 3600, function () {
return static::with('author')->published()->get();
});
}
}
{{-- Cache entire section --}}
@cache('sidebar', now()->addHour())
<div class="sidebar">
{{-- Expensive sidebar content --}}
</div>
@endcache
{{-- Cache with dynamic key --}}
@cache('post-' . $post->id . '-comments', now()->addMinutes(30))
@foreach($post->comments as $comment)
{{-- Comment markup --}}
@endforeach
@endcache
Caching dramatically improves performance by storing expensive computations or database queries. Laravel supports multiple cache drivers—Redis, Memcached, file, database. I use Cache::remember() to fetch or compute and cache values with expiration. Cache tags group related items for bulk invalidation. The forever() method caches indefinitely until manually cleared. Model caching via packages like laravel-cacheable auto-caches queries. For query results, I cache collections with Cache::tags(['posts'])->remember(). Cache invalidation happens in model observers when data changes. The cache() helper provides a fluent API. Fragment caching in Blade with @cache caches view partials. Proper caching can reduce database load by 80%+ while keeping data fresh.
