Cache drivers (file, Redis, Memcached) in Laravel - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set a cache value using the file driver.

Laravel

Cache::store('[1]')->put('key', 'value', 600);

Drag options to blanks, or click blank then click option'

Aredis

Bfile

Cmemcached

Ddatabase

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'redis' or 'memcached' without having those services configured.

Confusing 'database' driver with file driver.

The file driver stores cache data in files on disk. This is the default simple cache driver in Laravel.

2fill in blank

medium

Complete the code to retrieve a cached value from Redis driver.

Laravel

$value = Cache::store('[1]')->get('key');

Drag options to blanks, or click blank then click option'

Aredis

Bfile

Cmemcached

Darray

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'file' driver name when intending to use Redis.

Using 'array' driver which is not persistent.

The redis driver connects to a Redis server to store and retrieve cache data.

3fill in blank

hard

Fix the error in the code to use Memcached driver for caching.

Laravel

Cache::store('[1]')->put('session', $data, 3600);

Drag options to blanks, or click blank then click option'

Aredis

Bfile

Cmemcached

Ddatabase

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'memcache' instead of 'memcached'.

Using 'redis' or 'file' driver names by mistake.

The memcached driver uses Memcached service for caching. The driver name must be exactly 'memcached'.

4fill in blank

hard

Fill both blanks to create a cache key with prefix and set it using Redis driver.

Laravel

Cache::store('[1]')->put('[2]_user', $userData, 120);

Drag options to blanks, or click blank then click option'

Aredis

Bfile

Csession

Dmemcached

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'file' driver with Redis key prefix.

Using wrong prefixes that do not match the cache purpose.

The Redis driver is used for caching with Redis. The key prefix 'session' is often used to group related cache keys.

5fill in blank

hard

Fill all three blanks to retrieve a cached value with fallback using Memcached driver.

Laravel

$value = Cache::store('[1]')->remember('[2]', 300, function() { return [3]; });

Drag options to blanks, or click blank then click option'

Amemcached

Buser_profile

CUser::find(1)

Dredis

Attempts:

3 left

💡 Hint

Common Mistakes

Using Redis driver name instead of Memcached.

Using invalid cache keys or missing fallback function.

The remember method tries to get the cache value or runs the callback to store and return it. Using Memcached driver with a key and a fallback function is common.