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Refresh Cambridge, 2 Sept 2013
Simon R Jones, Studio 24www.studio24.net
So.. PHP
• Has a bad rep, it’s cool to diss PHP
• Massively successful language
• Low barrier to entry
• Bad practices
PHP..
• Naming inconsistencies
• register_globals
• Unpredictable releases. 5.2 in 2006, 5.3 in 2009, PHP 6?..
• However...It’s a great language for getting things done
PHP internal dev process
• Predictable yearly release cycle
• Support old versions for 3 years
• Development on GitHub - github.com/php/php-src
• Public RFCs - wiki.php.net/rfc
PHP 5.3(pretty old now)
• Released June 2009
• Namespaces
• Closures / Anonymous functions
• DateTime manipulation
Namespaces
// My/Class/Example.php namespace My\Class;
// In the past was called My_Class_Exampleclass Example {
}
Namespacesnamespace My\Class;use Zend\Http\Client;
class Example {
// My\Class\Foo $fish = new Foo()
$client = new Client(); $client->setUri('http://bbc.co.uk'); $response = $client->dispatch();}
http://php.net/language.namespaces
Anonymous functions
// PHP 5.4 array syntax$items = ['lancashire', 'cheddar', 'manchego', 'brie'];
array_walk($items, function(&$value) { if ($value == 'manchego') { $value .= ' is great!'; } $value = ucfirst($value);});
php.net/functions.anonymous
PHP 5.4
• Released March 2012
• Traits
• Short syntax for arrays
• Built-in webserver for testing
• Removed really old stuff: safe_mode, register_globals, magic_quotes
Traits
class Cart { use Maths;}
class Maths { function calculateVAT() { }}
$cart = new Cart()$cart->calculateVAT();
http://php.net/traits
Built-in webserver
$ php -S localhost:8000
PHP 5.4.10 Development Server started at Tue Aug 27 22:47:36 2013Listening on http://localhost:8000Document root is /Users/sjonesPress Ctrl-C to quit.
[Tue Aug 27 22:48:39 2013] ::1:49251 [200]: /
php.net/features.commandline.webserver
PHP 5.5
• Released June 2013
• Simple password hashing!
• Generators
• “finally” for try/catch statements
• Built-in opcode cache
Password hashing
// Create hash$hash = password_hash('refresh');
// Test password$result = password_verify('refresh', $hash);
Forward-compatible PHP 5.3 port -github.com/ircmaxell/password_compat
php.net/password
Community
PHP FIG(Framework Interop Group)
• Common patterns in PHP projects to help code sharing
• PSR-0 standard file, class and namespace conventions to support code sharing
• PSR-1 & PSR-2 coding standards
• PSR-3 common interface for logging
PHP FIG
• Used by projects such as Drupal, Zend, Symfony, CakePHP, phpBB, AWS SDK
• www.php-fig.org
• Nice post on recent updates - philsturgeon.co.uk/blog/2013/08/progress-in-the-phpfig
Composer
• Dependency manager
• Used to install PHP packages
• Loads everything into vendor/
• Autoloader supplied in vendor/autoload.php
• Really, really easy!
Composer
{ "name": "My Project", "require": { "php": ">=5.3.3", "zendframework/zendframework": "2.2.*", "zf-commons/zfc-base": "0.1.*", "zf-commons/zfc-twig": "1.1.*", "phpunit/phpunit": "3.7.*", "zendframework/zend-developer-tools": "0.0.*" }}
$ composer installLoading composer repositories with package informationInstalling dependencies (including require-dev) - Installing zendframework/zendframework (2.2.4) Loading from cache
- Installing zf-commons/zfc-base (v0.1.2)
- Installing twig/twig (v1.13.2) Downloading: 100%
- Installing zf-commons/zfc-twig (1.1.5) Downloading: 100%
- Installing symfony/yaml (v2.3.4)
getcomposer.org
Education
Thanks!
Slides on slideshare.net/simonrjones
Next Refresh meetup first week of NovemberSign up to our mailing list at refreshcambridge.org
Sponsored by Studio 24 - www.studio24.net
@simonrjones@refreshcambs
