Danizord danizord

New features in PHP 5.5

This is only a summary. For a full list of changes see the NEWS file.

Feature	RFC / announcement	Author

Bundled ZendOptimizer+ as OPcache	https://wiki.php.net/rfc/optimizerplus	zeev

Why objects (usually) use less memory than arrays in PHP

This is just a small post in response to [this tweet][tweet] by Julien Pauli (who by the way is the release manager for PHP 5.5). In the tweet he claims that objects use more memory than arrays in PHP. Even though it can be like that, it's not true in most cases. (Note: This only applies to PHP 5.4 or newer.)

The reason why it's easy to assume that objects are larger than arrays is because objects can be seen as an array of properties and a bit of additional information (like the class it belongs to). And as array + additional info > array it obviously follows that objects are larger. The thing is that in most cases PHP can optimize the array part of it away. So how does that work?

The key here is that objects usually have a predefined set of keys, whereas arrays don't:

Apple,

You are a company I learned to love and hate. In that same order.

I love the way you try to reach excellence in everything you do
I hate the way you try to fuck everyone else who tries to do same

Things I (still) love

The MacBook (track pad) is a great piece of hardware, sadly it is not one-of-a-kind anymore. Even more sad is that all other (great) options do not try to hold you on all kind of accessories and stuff, although it still bearable for an old time customer.

	<?php
	$a = 10;

	if ($a > 5) {
	$b = 5;
	} else {
	$b = 10;
	}

	GET /products HTTP/1.1
	Host: example.com

	HTTP/1.1 200 Ok
	Content-Type: text/html;charset=utf-8
	<!doctype html>
	<title>All Products</title>
	<h1>Products</h1>
	<ul>
	<li><a rel="item" href="/products/1">Product 1</a></li>

	<?php

	namespace Ocramius\CMS\ContentTest;

	use Ocramius\CMS\ContentTest\Util\ServiceManagerFactory;
	use Doctrine\ORM\Tools\SchemaTool;
	use Doctrine\ORM\Tools\SchemaValidator;
	use PHPUnit_Framework_TestCase;

	/**

	vendor
	composer.lock