README

CacheTool Library allows you to work with APCu, OPcache, and the file status cache. It will connect to a FastCGI server (like PHP-FPM) and operate on its cache.

This is a library-only fork of gordalina/cachetool

Why is this useful?

• Maybe you want to clear the bytecode cache without reloading php-fpm or using a web endpoint
• Maybe you want to have a cron which deals with cache invalidation
• Maybe you want to see some statistics right from PHP
• And many more...

Note that, unlike APCu and Opcache, the file status cache is per-process rather than stored in shared memory. This means that running stat:clear against PHP-FPM will only affect whichever FPM worker responds to the request, not the whole pool. Julien Pauli has written a post with more details on how the file status cache operates.

## Usage

Add it as a dependency

```sh
composer require onstuimig/cachetool-library

Create instance

use CacheTool\Adapter\FastCGI;
use CacheTool\CacheTool;

$adapter = new FastCGI('127.0.0.1:9000');
$cache = CacheTool::factory($adapter, '/tmp');

You can use apcu and opcache functions

$cache->apcu_clear_cache();
$cache->opcache_reset();

Proxies

CacheTool depends on Proxies to provide functionality, by default when creating a CacheTool instance from the factory all proxies are enabled ApcuProxy, OpcacheProxy and PhpProxy, you can customize it or extend to your will like the example below:

use CacheTool\Adapter\FastCGI;
use CacheTool\CacheTool;
use CacheTool\Proxy;

$adapter = new FastCGI('/var/run/php-fpm.sock');
$cache = new CacheTool();
$cache->setAdapter($adapter);
$cache->addProxy(new Proxy\ApcuProxy());
$cache->addProxy(new Proxy\PhpProxy());

Testing

After running composer install, run ./vendor/bin/phpunit

Troubleshooting test failures

sslip.io

Tests in tests/Adapter/Http/FileGetContentsTest and tests/Adapter/Http/SymfonyHttpClientTest rely on sslip.io to resolve hostnames containing an IP to the IP contained. For this to work a nameserver from sslip.io needs to be in the DNS servers configured on the host which runs those tests, otherwise hostnames like _.127.0.0.1.sslip.io used for testing will not resolve. The IP addresses for the DNS servers can be found on sslip.io, how to configure them depends on the system used to run the tests.

Version Compatibility

License

CacheTool is licensed under the MIT License - see the LICENSE for details