Irek skolman

Awesome PHP

Awesome PHP has been relocated permanently to its own Github repository. No further updates will made to this gist.

Please open an issue for any new suggestions.

This article has been given a more permanent home on my blog. Also, since it was first written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.

You're Missing the Point of Promises

Promises are a software abstraction that makes working with asynchronous operations much more pleasant. In the most basic definition, your code will move from continuation-passing style:

getTweetsFor("domenic", function (err, results) {
 // the rest of your code goes here.

Abstraction Suggestions

Summary: use good/established messaging patterns like Enterprise Integration Patterns. Don't make up your own. Don't expose transport implementation details to your application.

Broker

As much as possible, I prefer to hide Rabbit's implementation details from my application. In .Net we have a Broker abstraction that can communicate through a lot of different transports (rabbit just happens to be our preferred one). The broker allows us to expose a very simple API which is basically:

publish
request
start/stop subscription

	# Tweaked from http://tomislavsantek.iz.hr/2011/03/moving-mysql-databases-to-ramdisk-in-ubuntu-linux

	# Log in as root
	# Mount ramdisk folder in RAM
	mkdir /tmp/ramdisk
	mount -t tmpfs -o size=128M tmpfs /tmp/ramdisk/

	# Move MySQL data
	mv /var/lib/mysql /tmp/ramdisk/mysql
	ln -s /tmp/ramdisk/mysql/ /var/lib/mysql

	<?php
	use Ratchet\MessageComponentInterface;
	use Ratchet\ConnectionInterface;

	class MyApp1 implements MessageComponentInterface {
	public function onOpen(ConnectionInterface $conn) {
	}

	public function onMessage(ConnectionInterface $from, $msg) {
	}

	<?php

	use Doctrine\ORM\Mapping as ORM;
	use Doctrine\Common\Collections\ArrayCollection;

	/**
	* @ORM\Entity()
	* @ORM\Table(name="user")
	*/
	class User

	<?php

	// STEP 1: read POST data

	// Reading POSTed data directly from $_POST causes serialization issues with array data in the POST.
	// Instead, read raw POST data from the input stream.
	$raw_post_data = file_get_contents('php://input');
	$raw_post_array = explode('&', $raw_post_data);
	$myPost = array();
	foreach ($raw_post_array as $keyval) {

	# Start the old vagrant
	$ vagrant init centos-6.3
	$ vagrant up

	# You should see a message like:
	# [default] The guest additions on this VM do not match the install version of
	# VirtualBox! This may cause things such as forwarded ports, shared
	# folders, and more to not work properly. If any of those things fail on
	# this machine, please update the guest additions and repackage the
	# box.

	$ redis-cli
	> config set stop-writes-on-bgsave-error no