Modern PHP
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This document summarizes the evolution of PHP from issues with early versions like inconsistent naming and unpredictable releases to recent improvements like namespaces, anonymous functions, and a standardized release cycle. It discusses tools for PHP development like Composer and FIG as well as educational resources. Key points covered include PHP's move to namespaces in 5.3, anonymous functions in 5.4, and built-in password hashing in 5.5. FIG standards like PSR-0 help code sharing while Composer eases dependency management.
![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](https://image.slidesharecdn.com/modernphp-130901161213-phpapp02/85/Modern-PHP-9-320.jpg)
![Built-in webserver
$ php -S localhost:8000
PHP 5.4.10 Development Server started at Tue
Aug 27 22:47:36 2013
Listening on http://localhost:8000
Document root is /Users/sjones
Press Ctrl-C to quit.
[Tue Aug 27 22:48:39 2013] ::1:49251 [200]: /
php.net/features.commandline.webserver](https://image.slidesharecdn.com/modernphp-130901161213-phpapp02/85/Modern-PHP-12-320.jpg)
Modern PHP
- 1. Modern . Refresh Cambridge, 2 Sept 2013 Simon R Jones, Studio 24 www.studio24.net
- 2. So.. PHP • Has a bad rep, it’s cool to diss PHP • Massively successful language • Low barrier to entry • Bad practices
- 3. 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
- 4. php.net
- 5. 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
- 6. PHP 5.3 (pretty old now) • Released June 2009 • Namespaces • Closures / Anonymous functions • DateTime manipulation
- 7. Namespaces // My/Class/Example.php namespace MyClass; // In the past was called My_Class_Example class Example { }
- 8. Namespaces namespace MyClass; use ZendHttpClient; class Example { // MyClassFoo $fish = new Foo() $client = new Client(); $client->setUri('http://bbc.co.uk'); $response = $client->dispatch(); } http://php.net/language.namespaces
- 9. 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
- 10. 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
- 11. Traits class Cart { use Maths; } class Maths { function calculateVAT() { } } $cart = new Cart() $cart->calculateVAT(); http://php.net/traits
- 12. Built-in webserver $ php -S localhost:8000 PHP 5.4.10 Development Server started at Tue Aug 27 22:47:36 2013 Listening on http://localhost:8000 Document root is /Users/sjones Press Ctrl-C to quit. [Tue Aug 27 22:48:39 2013] ::1:49251 [200]: / php.net/features.commandline.webserver
- 13. PHP 5.5 • Released June 2013 • Simple password hashing! • Generators • “finally” for try/catch statements • Built-in opcode cache
- 14. 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
- 15. Community
- 16. 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
- 17. 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
- 18. Composer • Dependency manager • Used to install PHP packages • Loads everything into vendor/ • Autoloader supplied in vendor/autoload.php • Really, really easy!
- 19. 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.*" } }
- 20. $ composer install Loading composer repositories with package information Installing 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
- 21. packagist.org
- 22. Education
- 24. nomadphp.com
- 25. nomadphp.com
- 27. Thanks! Slides on slideshare.net/simonrjones Next Refresh meetup first week of November Sign up to our mailing list at refreshcambridge.org Sponsored by Studio 24 - www.studio24.net @simonrjones @refreshcambs