A cache implementation based on 500x faster caching and brick/varexporter.

composer require jasny/varcache

The Cache object implements PSR-16 simple cache.

use Jasny\VarCache\Cache;

$cache = new Cache('path/to/cache/dir');

$service = $cache->get('service');

if ($service === null) {
    $service = new Service();

    // ... Initialize service

    $cache->set('service', $service);
}

Caveat: Method has() disregards the ttl.

The resolve method takes a closure (without arguments). It will cache the return value of the function as PHP script. On subsequent requests the closure isn't called, but the cached value is returned.

use Jasny\VarCache\Cache;

$cache = new Cache('path/to/cache/dir');

$service = $cache->resolve(function() {
    $service = new Service();
    
    // ... Initialize service
    
    return $service;
});

The cache function uses reflection to create a hash of the closure. Limited information about the closure is returned through reflection. This means that changes to the code don't automatically result in a different hash.

During development, you may not want to cache. NoCache is a null object that will not store anything.

use Jasny\VarCache\NoCache;

$cache = new NoCache();

$service = $cache->resolve(function() {
    $service = new Service();
    
    // ... Initialize service
    
    return $service;
});