php 5.3, a walkthrough

PHP 5.3A Walkthrough

@davidcoallier

Dé Luain 20 Meán Fómhair 2010

Who are you?Experiences, usage, etc.

Who am I?Work, experiences, usage, etc.

The Talk!Recap of why you are here...

A small PHP 6Oh no, you didn’t!

In a nutshellmysqlnd, phar, syntax, sqlite3, spl-sauce, speed, etc.

ext/intlInternationalization Extension

Collatorstring comparison, sorting, locale

Numbers...1,000,000; 1.000.000; 1 000 000

ICU☃☕♨♿⚛

More Importantly

L S BLate Static Binding, wtf is that?

NAMESPACES\\\\

NAMESPACES!!!!

Closures & λs

Late-Static Bindingself:: vs static::, what’s that? LSB?

class Base { public static function who() { echo __CLASS__; } public static function foo() { self::who(); }}

class Child extends Base { public static function who() { echo __CLASS__; }}

Child::foo(); // Echoes Base

class Base { public static function who() { echo __CLASS__; } public static function foo() { static::who(); }}

class Child extends Base { public static function who() { echo __CLASS__; }}

Child::foo(); // Echoes Child

$this is not static::Don’t get tricked, no inheritance

Object LifecycleCreate, Immute, Memoize

Referencial TransparencyIt’s not maths, it’s software.

ZzzZz.....

Dynamic StaticsOh that sounds nasty...

$class = 'ClassName';$method = 'methodName';

$class::$method(...);

Remember __call?

__callStatic()

Enough Statics..Moving on.

NamespacesSo we have namespaces, now what?

\Get over it.\We know. \

OrganizeStructural decisions, maintainability

namespace pear\package;class Example { // ...}

use pear\package;$class = new Example();// or$class = new pear\package\Example();

MeaningAnd community significance

The culprit\strlen

Coding Standardshttp://groups.google.com/group/php-standards/web/psr-0-final-proposal

PharThe jar-like PHP Archives

include 'phar://package.phar/index.php';

$phar = new Phar('drupal7.phar');$phar->buildFromDirectory(__DIR__ . '/drupal7');$phar->setStub("<?phpPhar::interceptFileFuncs();Phar::webPhar();__HALT_COMPILER(); ?>"

RewriteRule ^(.*)$ /drupal7.phar/$1 [QSA,L]

Running, web-ing Phar magic-happy-times.

λ (Lambda)Assigned to a variable

$name = function() { return 'david'; };

Closurefunctions with bound variables

$names = array( 'Nate Abele', 'David Coallier', 'Cap\'n Crunch' ); $split = array_map( function($name) { list($first, $last) = explode(' ', $name); return compact('first', 'last'); }, $names ); // Result: array( array('first' => 'Nate', 'last' => 'Abele'), array('first' => 'David', 'last' => 'Coallier'), array('first' => 'Cap\'n', 'last' => 'Crunch') )

Stolen From NATE!

$names = array('david', 'nate');$friends = array('helgi', 'joel');

$split = function($name) use ($friends) { //...};

Functors :O

class Name { public function __invoke() { return 'david'; }}

echo $name();

Other things?SPL, changes, NOWDOCS, etc

Fast TernariesNo need to check anymore... Beware

$name = isset($_GET['name']) ? $_GET['name'] : 'No Name';

$name = $_GET['name'] ?: 'No Name';

NOWDOCSNOWDOCS cooler than HEREDOCS

$name = 'david';$example =<<<RTFMHello $name,See you soon.RTFM;// Hello David

$name = 'david';$example =<<<'RTFM'Hello $name,See you soon.RTFM;// Hello $name

PerformanceBetter faster strong. Better stack

Garbage Collectiongc_enable(), gc_disable(), etc.

__DIR__dirname(__FILE__)

__NAMESPACE__

namespace pear\package\Example2 { const TEST = 'In Namespaces...'; function foo() { echo __NAMESPACE__; }}

echo \pear\package\Example2::TEST; // In Namespaces...\pear\package\Example2\foo(); // Example2

E_DEPRECATED

MySQLndNative MySQL Driver, faster, stats, self-contained

DateTimeCrazy amazing dates handling

$datetime1 = new DateTime('2009-10-11');$datetime2 = new DateTime('2009-10-13');$interval = $datetime1->diff($datetime2);

echo $interval->format('%R%d days');

// +2 days

SPLIterators, Iterators, Iterators.

SPLDatastructures, Exceptions, Misc...

My Favourite

PHP FPMAlternate FastCGI Implementation 5.3.3

IncentiveWhy do I have to use PHP 5.3?

LithiumIt’s so rad!

Zend Framework 2

Symfony 2

Doctrine 2

Thank you@davidcoallier

php 5.3, a walkthrough

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