add readme

Author: makasim

README.md

@@ -0,0 +1,68 @@
+# PHP-FPM Async Queue
+
+Use php-fpm as a simple built-in async queue. Based on interoperable queue interfaces [Queue Interop](https://github.com/queue-interop/queue-interop).  
+
+## Usage
+
+```bash
+composer makasim/php-fpm-queue:0.1.x-dev queue-interop/queue-interop:0.7.x-dev enqueue/dsn:0.9.x-dev
+```
+
+A sender script:
+
+```php
+<?php
+# sender.php
+
+use Makasim\PhpFpm\PhpFpmConnectionFactory;
+
+require_once __DIR__.'/vendor/autoload.php';
+
+$context = (new PhpFpmConnectionFactory('tcp://localhost:9000'))->createContext();
+
+$queue = $context->createQueue('/app/worker.php');
+$message = $context->createMessage('aBody');
+
+$context->createProducer()->send($queue, $message);
+```
+
+A worker script:
+
+
+```php
+<?php
+# worker.php
+
+use Makasim\PhpFpm\PhpFpmConnectionFactory;
+
+require_once __DIR__.'/vendor/autoload.php';
+
+$context = (new PhpFpmConnectionFactory('tcp://localhost:9000'))->createContext();
+
+$queue = $context->createQueue(__FILE__);
+
+$consumer = $context->createConsumer($queue);
+
+if ($message = $consumer->receiveNoWait()) {
+    // process message
+
+    $consumer->acknowledge($message);
+}
+```
+
+Start PHP-FPM:
+
+```bash
+docker run -v `pwd`:/app -p 9000:9000 php:7.2-fpm
+```
+
+Send a message:
+
+```bash
+php sender.php
+```
+
+## Credits
+
+Inspired by Benjamin post [Using php-fpm as a simple built-in async queue](https://tideways.com/profiler/blog/using-php-fpm-as-a-simple-built-in-async-queue)
+