Ilic Davor webfacer

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:

Hitchhikers guide to TypoScript 2

The old days

Do you remember the good old days?

What is TypoScript? Various myths and speculations exist about that, well, programming language? No, it never was a programming language. Though it could be used to express logic. Is it a configuration language then? It's often used to configure settings, but the scope is certainly blurry.

The power of TypoScript - if used well - is the declarative approach of expressing the rendering and execution of various parts of the system. And a declaration in TypoScript is never final, but can be changed at a later time by another extension or template.

Configure

`xdebug.ini`

xdebug.remote_enable=1
xdebug.remote_handler=dbgp
xdebug.remote_port=9000
xdebug.remote_autostart=1
xdebug.remote_connect_back=1

	function buildTSFE($pid = 1) {
	global $BACK_PATH;

	//needed for TSFE
	require_once(PATH_t3lib.'class.t3lib_timetrack.php');
	require_once(PATH_t3lib.'class.t3lib_tsparser_ext.php');
	require_once(PATH_t3lib.'class.t3lib_page.php');
	require_once(PATH_t3lib.'class.t3lib_stdgraphic.php');

	require_once($BACK_PATH.'sysext/cms/tslib/class.tslib_fe.php');

	function get_vimeoid( $url ) {
	$regex = '~
	# Match Vimeo link and embed code
	(?:<iframe [^>]*src=")? # If iframe match up to first quote of src
	(?: # Group vimeo url
	https?:\/\/ # Either http or https
	(?:[\w]+\.)* # Optional subdomains
	vimeo\.com # Match vimeo.com
	(?:[\/\w]*\/videos?)? # Optional video sub directory this handles groups links also
	\/ # Slash before Id

	<?php

	...

	/**
	* @var \TYPO3\Flow\Mvc\Routing\UriBuilder
	*/
	protected $uriBuilder;

	/**

	Byobu Commands
	==============

	byobu Screen manager


	Level 0 Commands (Quick Start)
	------------------------------

	<F2> Create a new window

	<?php

	// Function that returns random video ID from a users videofeed
	function RandomYoutube($youtubefeed){

	$feedresult = simplexml_load_file($youtubefeed);

	$videoids = array();

	foreach ($feedresult->entry as $video) {

	<dateName>
	<TCEforms>
	<label>LLL:EXT:skinFlex/flex/locallang.xml:flexform.flex.dateName</label>
	<config>
	<type>input</type>
	<eval>date</eval>
	</config>
	</TCEforms>
	</dateName>

	image_stringS = IMG_RESOURCE
	image_stringS{
	file{
	width = 100
	import = uploads/media/
	import{
	field = media
	listNum = 0
	}
	}