Cache tags in Laravel - Mini Project: Build & Apply

Using Cache Tags in Laravel

📖 Scenario: You are building a Laravel application that caches different types of data separately. You want to group cached items using tags so you can clear related cache entries easily.

🎯 Goal: Build a Laravel cache example that stores and retrieves data using cache tags, and then clears cache by tag.

📋 What You'll Learn

Create a cache entry with a tag

Set a cache expiration time

Retrieve a cached item using the tag

Clear all cache items with a specific tag

💡 Why This Matters

🌍 Real World

Cache tags help organize cached data by groups, making it easy to clear related cache entries without affecting others. This is useful in apps with multiple data types or modules.

💼 Career

Understanding cache tagging is important for Laravel developers to optimize app performance and manage cache efficiently in real projects.

1

Create a cache entry with a tag

Write code to store the string 'Laravel Cache with Tags' in the cache with the key 'message' using the tag 'framework'. Use the Laravel Cache::tags() method and the put() method.

Laravel

<?php

use Illuminate\Support\Facades\Cache;

// Store 'Laravel Cache with Tags' in cache with key 'message' and tag 'framework'
// Your code here

Need a hint?

Use Cache::tags(['framework'])->put('message', 'Laravel Cache with Tags', 3600); to store the cache with a tag and expiration time of 3600 seconds.

2

Set a cache expiration time

Add a variable called $expiration and set it to 3600 seconds. Then update the cache put() call to use this $expiration variable as the expiration time.

Laravel

<?php

use Illuminate\Support\Facades\Cache;

$expiration = 3600;
// Update the cache put call to use $expiration
// Your code here

Need a hint?

Define $expiration = 3600; and use it as the third argument in put().

3

Retrieve a cached item using the tag

Write code to get the cached value with key 'message' using the tag 'framework'. Store the result in a variable called $cachedMessage. Use the Laravel Cache::tags() method and the get() method.

Laravel

put('message', 'Laravel Cache with Tags', $expiration);

// Retrieve the cached message using tag 'framework'
// Your code here

Need a hint?

Use $cachedMessage = Cache::tags(['framework'])->get('message'); to retrieve the cached item by tag.

4

Clear all cache items with a specific tag

Write code to clear all cache entries with the tag 'framework' using the Laravel Cache::tags() method and the flush() method.

Laravel

put('message', 'Laravel Cache with Tags', $expiration);

$cachedMessage = Cache::tags(['framework'])->get('message');

// Clear all cache with tag 'framework'
// Your code here

Need a hint?

Use Cache::tags(['framework'])->flush(); to clear all cache entries with the tag.