Modern PHP - Speaker Deck

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Modern PHP

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Anwar ZIANI https://twitter.com/Zianwar_ Web development ❤️ Computer Engineering Student at ENSAT Who am I ?

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PHP is a server side scripting language , your write php code, upload it to a server and execute it with an interpreter like Apache or nginx . PHP

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PHP is a server side scripting language , your write php code, upload it to a server and execute it with an interpreter like Apache or nginx . PHP can also be used to build command line apps (just like bash, Ruby or Python) PHP

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PHP was created by Rasmus Lerdorf, as a collection of CGI scripts to track visits to his online resume. How it started

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PHP was created by Rasmus Lerdorf, as a collection of CGI scripts to track visits to his online resume. How it started He named this set of CGI scripts by “Personal Home Page Tools”

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PHP was created by Rasmus Lerdorf, as a collection of CGI scripts to track visits to his online resume. How it started He named this set of CGI scripts by “Personal Home Page Tools” After that he developed this collection to become a Full programming language with more consistent syntax and OOP support

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PHP is so popular, supported by many developers and companies. (Wikipedia, Facebook, Yahoo!…) The present of PHP

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PHP is so popular, supported by many developers and companies. (Wikipedia, Facebook, Yahoo!…) The present of PHP Nowadays: no FTP, version control software like Git helps maintain and track entire codebase

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PHP is so popular, supported by many developers and companies. (Wikipedia, Facebook, Yahoo!…) Composer as a dependency manager The present of PHP Nowadays: no FTP, version control software like Git helps maintain and track entire codebase Local environment identical to production with tools like Vagrant, Chef, Puppet…

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vs Zend Engine Hip Hip Virtual machine The futur of PHP

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Namespaces deﬁnition Important tool to organise PHP code into a virtual hierarchy +PVTQFWEGFKP 2*2

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Namespaces deﬁnition Important tool to organise PHP code into a virtual hierarchy +PVTQFWEGFKP 2*2 Just like operating system’s ﬁlesystem directory structure

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Namespaces definition Important tool to organise PHP code into a virtual hierarchy +PVTQFWEGFKP 2*2 Just like operating system’s filesystem directory structure Avoid any conflict with any class names used by another developers

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Namespaces symfony/httpfoundation Symfony framework’s component that manages HTTP requests and responses : %QORQPGPV deﬁnition

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Namespaces symfony/httpfoundation Symfony framework’s component that manages HTTP requests and responses : class Request class Response %QORQPGPV deﬁnition

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Symfony\Component\Httpfoundation Namespaces why ?

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Symfony\Component\Httpfoundation ENSAT\Routing Namespaces why ?

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Symfony\Component\Httpfoundation ENSAT\Routing class Request class Response ... { Namespaces why ?

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Symfony\Component\Httpfoundation ENSAT\Routing class Request class Response class AnotherClass ... { class Request class Response ... { Namespaces why ?

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Symfony\Component\Httpfoundation ENSAT\Routing class Request class Response class AnotherClass ... { class Request class Response ... { Namespaces why ? '4414

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Namespaces declaration

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Namespaces declaration

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Namespaces declaration

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Namespaces declaration

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Namespaces use

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Namespaces use

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Namespaces use

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Namespaces alias

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Namespaces alias

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Namespaces alias

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Namespaces default namespace

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Namespaces default namespace

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Namespaces default namespace

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Namespaces default namespace

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Traits deﬁnition +PVTQFWEGFKP 2*2 • Partial class implementation • Look like an interface, behave like a class • Cannot be instantiated on it’s own

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Traits why ? class A class C class B

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Traits why ? class A class C class B

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Traits why ? class AbstractFoo

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Traits why ? class AbstractFoo class Foo2 extends AbstractFoo class Foo1 extends AbstractFoo

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Traits why ? class AbstractFoo class Foo2 extends AbstractFoo class Foo1 extends AbstractFoo class AbstractBar

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Traits why ? class AbstractFoo class Foo2 extends AbstractFoo class Foo1 extends AbstractFoo class AbstractBar class Bar2 extends AbstractBar class Bar1 extends AbstractBar

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Traits why ? class AbstractFoo class Foo2 extends AbstractFoo class Foo1 extends AbstractFoo class AbstractBar class Bar2 extends AbstractBar class Bar1 extends AbstractBar Shareable,

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Traits why ? class AbstractFoo class Foo2 extends AbstractFoo class Foo1 extends AbstractFoo class AbstractBar class Bar2 extends AbstractBar class Bar1 extends AbstractBar Shareable, Likeable,

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Traits why ? class AbstractFoo class Foo2 extends AbstractFoo class Foo1 extends AbstractFoo class AbstractBar class Bar2 extends AbstractBar class Bar1 extends AbstractBar Shareable, Likeable, Geocodable …

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Traits declaration

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Traits declaration

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Traits declaration

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Traits declaration share();

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Traits examples Illuminate\Auth\Authenticatable Examples of Traits in Laravel framework :

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Traits examples Illuminate\Auth\Authenticatable Illuminate\Auth\Reminders\RemindableTrait Examples of Traits in Laravel framework :

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Traits examples Illuminate\Auth\Authenticatable Illuminate\Auth\Reminders\RemindableTrait Illuminate\Auth\UserTrait Examples of Traits in Laravel framework :

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Traits examples Illuminate\Auth\Authenticatable Illuminate\Auth\Reminders\RemindableTrait Illuminate\Auth\UserTrait Laravel\Cashier\Billable Examples of Traits in Laravel framework :

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Closures deﬁnition +PVTQFWEGFKP 2*2 • A closure is a function that encapsulates its surrounding state at the time it is created. • The encapsulated state exists inside the closure even when the closure lives after its original environment ceases to exist. • Anonymous functions • Can be assigned to variables and passed around just like any other PHP object • They are actually objects : instances of the Closure class

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Closures examples

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Closures examples

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Closures examples

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Closures examples "Mustapha, get me some coffee!” Attaching state to closures :

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Closures examples Examples of Closures in Laravel framework :

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Closures examples Examples of Closures in Laravel framework :

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Closures examples Examples of Closures in Laravel framework :

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Built-in HTTP server deﬁntion +PVTQFWEGFKP 2*2 • You don’t need to Apache or ngnix to preview your PHP code • Useful for small previews, but not full development

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Built-in HTTP server usage zianwar$ php -S localhost:4000 In terminal, navigate to your project root and type :

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Built-in HTTP server usage zianwar$ php -S localhost:4000 In terminal, navigate to your project root and type :

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Standards intro Laravel Symfony Silex Slim CodeIgniter } } /CETQHTCOGYQTMU /KETQHTCOGYQTMU .GICE[HTCOGYQTM

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Standards intro Apparition of PHP Framework Interop Group (PHP-FIG)

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Standards intro Apparition of PHP Framework Interop Group (PHP-FIG) According to the PHP-FIG website, they “talk about the commonalities between our projects and ﬁnd ways we can work together.”

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Standards intro • Interfaces • Autoloading • Style Modern framework share diﬀerent standards :

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Standards PSR • PSR-1 : Basic code style • PSR-2 : Strict code style • PSR-3 : Logger interface • PSR-4 : Autoloading PHP standards recommendations

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Standards PSR PSR-1 : Basic Code Style : 'CU[VQ KORNGOGPV http://www.php-ﬁg.org/psr/psr-1/

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Standards PSR PSR-2 : Strict Code Style : http://www.php-ﬁg.org/psr/psr-2/

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Standards PSR

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Standards PSR

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Standards PSR PSR-4 : Autoloader : Autoloading classes from ﬁle paths

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Standards PSR PSR-4 Autoloader Strategy : Mapping the top-level namespace prefix to a specific filesystem directory

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Standards PSR PSR-4 Autoloader Strategy : Mapping the top-level namespace prefix to a specific filesystem directory Acme\ src/ PCOGURCEG FKTGEVQT[

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Standards PSR PSR-4 Autoloader Strategy : Mapping the top-level namespace prefix to a specific filesystem directory Acme\ src/ PCOGURCEG FKTGEVQT[ Acme\Something src/Something UWDFKTGEVQT[ UWDPCOGURCEG

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Standards PSR

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Standards PSR

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Standards PSR … "autoload": { "classmap": [ "database" ], }, … composer.json Laravel is using PSR-4 : "psr-4": { "App\\": "app/" }

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Standards PSR … "autoload": { "classmap": [ "database" ], }, … composer.json Laravel is using PSR-4 : "psr-4": { "App\\": "app/" }

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Component oriented development deﬁniton A component is a bundle of code that helps solve a speciﬁc problem

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Component oriented development deﬁniton A component is a bundle of code that helps solve a speciﬁc problem Good components are :

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Component oriented development deﬁniton A component is a bundle of code that helps solve a speciﬁc problem Good components are : • Laser-focused • Small • Cooperative • Well-tested • Well-documented

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Components Where to ﬁnd them? https://packagist.org Find components :

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Components Where to ﬁnd them? http://packalyst.com/ Laravel-only components :

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Components How to install them?

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Composer deﬁnition Take care of package download and autoload

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Composer deﬁnition Works hand-in-hand with Packagist Take care of package download and autoload

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Composer deﬁnition Works hand-in-hand with Packagist Take care of package download and autoload +YCPVVJG guzzlehttp/guzzle RCEMCIG

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Composer deﬁnition Works hand-in-hand with Packagist Take care of package download and autoload +YCPVVJG guzzlehttp/guzzle RCEMCIG Composer

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Composer deﬁnition Works hand-in-hand with Packagist Take care of package download and autoload +YCPVVJG guzzlehttp/guzzle RCEMCIG Packagist HGVEJGUVJGRCEMCIG Composer

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Composer deﬁnition Works hand-in-hand with Packagist Take care of package download and autoload +YCPVVJG guzzlehttp/guzzle RCEMCIG Packagist HGVEJGUVJGRCEMCIG Composer GitHub HKPFUVJGTGRQ74.

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Composer deﬁnition Works hand-in-hand with Packagist Take care of package download and autoload +YCPVVJG guzzlehttp/guzzle RCEMCIG Packagist HGVEJGUVJGRCEMCIG Composer GitHub HKPFUVJGTGRQ74. FGVGTOKPGURCEMCIG XGTUKQP

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guzzlehttp/guzzle Composer usage

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guzzlehttp/guzzle Composer usage CWVJQTPCOG

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guzzlehttp/guzzle Composer usage CWVJQTPCOG RCEMCIGPCOG

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Composer composer.json { "name": "zianwar/fancyapp", "description": "My fancy app", "keywords": ["morocco", "fancy", "hh"], "homepage": "http://fancyapp.com", "license": "MIT", "authors": [ { "name": "Anwar Ziani", "homepage": "https://github.com/zianwar", "role": "Artisan" } ], "support": { "email": "[email protected]" }, "require": { "php" : ">=5.4.0", "guzzlehttp/guzzle": "~5.0" }, "require-dev": { “phpunit/phpunit": "~4.3" }, "suggest": { "league/flysystem": "~1.0" }, "autoload": { "psr-4": { "FancyApp\\": "src/" } } }

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Composer composer.json Laravel’s composer.json ﬁle :

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Composer composer.json

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Resources

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Resources Modern PHP New Features and Good Practices - By Josh Lockhart

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Resources Modern PHP New Features and Good Practices - By Josh Lockhart https://github.com/ziadoz/awesome-php A curated list of amazingly awesome PHP libraries, resources and shiny things.

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Resources Modern PHP New Features and Good Practices - By Josh Lockhart https://github.com/ziadoz/awesome-php A curated list of amazingly awesome PHP libraries, resources and shiny things. https://github.com/phptodayorg/php-must-watch List of interesting conference talks and videos on PHP