2. About me
I'm Chris Kemper
I work at Drummond Central, but I also freelance
I've been in the industry for around 5 years
I've written a book with a snake on the cover (It's on
Version Control, if you didn't know)
I also own an elePHPant
Sunday, 21 April 13
4. What is Silex?
"Silex is a PHP microframework for PHP 5.3. It is built on the
shoulders of Symfony2 and Pimple and also inspired by sinatra."
Created by Fabien Potencier and Igor Wiedler
Sunday, 21 April 13
5. Getting started
You can download it from the site directly
http://silex.sensiolabs.org/
Or, you can get with the times and use Composer
{
"require": {
"silex/silex": "1.0.*@dev"
! }
}
Sunday, 21 April 13
6. Your first end point
I’ve used Composer, so after it’s all installed, you can add the first end
point!
require_once __DIR__.'/../vendor/autoload.php';
$app = new SilexApplication();
$app->get('/hello/{name}', function($name) use($app) {
!return 'Hello '.$app->escape($name);
});
$app->run();
Sunday, 21 April 13
7. Don’t forget about .htaccess
Composer doesn’t pull it down, do don’t forget to put it in.
<IfModule mod_rewrite.c>
Options -MultiViews
RewriteEngine On
#RewriteBase /path/to/app
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ index.php [L]
</IfModule>
If you’re using Apache 2.2.16+, then you can use:
FallbackResource /index.php
Sunday, 21 April 13
9. Using a templating language
You don’t always want to output strings, so let’s use Twig, because it’s
awesome.
{
"require": {
"silex/silex": "1.0.*@dev",
"twig/twig": ">=1.8,<2.0-dev",
"symfony/twig-bridge": "~2.1"
}
}
Sunday, 21 April 13
10. Register the Twig Service provider
$app->register(new SilexProviderTwigServiceProvider(), array(
! 'twig.path' => __DIR__.'/views',
));
Now to use it
$app->get('/hello/{name}', function ($name) use ($app) {
!return $app['twig']->render('hello.twig', array(
! 'name' => $name,
));
});
Sunday, 21 April 13
11. So many more Service providers
Check the docs at http://silex.sensiolabs.org/documentation
There are a boat load of Built-in Service Providers which you can take advantage of!
Doctrine, Monolog, Form and Validation are just a couple of examples.
Sunday, 21 April 13
12. Tips: Extending the base application
This allows you to add, anything to the base application to
make your own life easier.
First of all, you need a class
<?php
namespace Acme;
use
SilexApplication as BaseApplication;
class Application extends BaseApplication {
}
Sunday, 21 April 13
13. Tips: Extending the base application
Now time to autoload that class, psr-0 style.
{
"require": {
"silex/silex": "1.0.*@dev",
"twig/twig": ">=1.8,<2.0-dev",
"symfony/twig-bridge": "~2.1"!
},
"autoload": {
"psr-0": {"Acme": "src/"}
}
}
Sunday, 21 April 13
14. Tips: Separate your config and routes
app/bootstrap.php
require_once __DIR__ . '/../vendor/autoload.php';
use
! SymfonyComponentHttpFoundationRequest,
! SymfonyComponentHttpFoundationResponse;
use
! AcmeApplication;
$app = new Application;
$app->register(new SilexProviderTwigServiceProvider(),
array(
! 'twig.path' => __DIR__.'/views',
));
return $app;
Sunday, 21 April 13
15. Tips: Separate your config and routes
web/index.php
<?php
$app = include __DIR__ . '/../app/bootstrap.php';
$app->get('/hello/{name}', function ($name) use ($app) {
return $app['twig']->render('hello.twig', array(
'name' => $name,
));
});
$app->run();
Sunday, 21 April 13
16. Let's make an API
Silex is great for API's, so let's make one. Here is the groundwork for a basic
user-based API
Some lovely endpoints:
Create a user (/user) - This will use POST to create a new user in the DB.
Update a user (/user/{id}) - This will use PUT to update the user
View a user (/user/{id}) - This will use GET to view the users information
Delete a user (/user/{id}) - Yes you guessed it, this uses the DELETE method.
Sunday, 21 April 13
17. More dependencies!
If we want to use a database, we'll need to define one. Let's get DBAL!
{
"require": {
"silex/silex": "1.0.*@dev",
"twig/twig": ">=1.8,<2.0-dev",
"symfony/twig-bridge": "~2.1",
"doctrine/dbal": "2.2.*"
},
"autoload": {
"psr-0": {"Acme": "src/"}
}
}
Sunday, 21 April 13
18. More dependencies!
It'll just be MySQL so let's configure that
$app->register(new DoctrineServiceProvider(), array(
! 'db.options' => array(
! ! 'dbname' ! => 'acme',
! ! 'user' ! ! => 'root',
! ! 'password' ! => 'root',
! ! 'host' ! ! => 'localhost',
! ! 'driver' ! => 'pdo_mysql',
! ),
));
Sunday, 21 April 13
19. Show me your endpoints: POST
Before we can do anything, we need to create some users.
$app->post('/user', function (Request $request) use ($app) {
$user = array(
'email' => $request->get('email'),
! 'name' => $request->get('name')
);
$app['db']->insert('user', $user);
return new Response("User " . $app['db']->lastInsertId() . "
created", 201);
});
Sunday, 21 April 13
20. Show me your endpoints: PUT
To update the users, we need to use PUT
$app->put('/user/{id}', function (Request $request, $id) use
($app) {
$sql = "UPDATE user SET email = ?, name = ? WHERE id = ?";
$app['db']->executeUpdate($sql, array(
$request->get('email'),
$request->get('name'),
(int) $id)
);
!
return new Response("User " . $id . " updated", 303);
});
Sunday, 21 April 13
21. Show me your endpoints: GET
Let's get the API to output the user data as JSON
$app->get('/user/{id}', function (Request $request, $id) use
($app) {
$sql = "SELECT * FROM user WHERE id = ?";
$post = $app['db']->fetchAssoc($sql, array((int) $id));
return $app->json($post, 201);
});
Sunday, 21 April 13
22. Show me your endpoints: DELETE
Lastly, we have DELETE
$app->delete('/user/{id}', function (Request $request, $id) use
($app) {
$sql = "DELETE FROM user WHERE id = ?";
$app['db']->executeUpdate($sql, array((int) $id));
return new Response("User " . $id . " deleted", 303);
});
Sunday, 21 April 13
23. A note about match()
Using match, you can catch any method used on a route. Like so:
$app->match('/user', function () use ($app) {
! ...
});
You can also limit the method accepted by match by using the 'method'
method
$app->match('/user', function () use ($app) {
! ...
})->method('PUT|POST');
Sunday, 21 April 13
24. Using before() and after()
Each request, can be pre, or post processed. In this case, it could be used for
auth.
$before = function (Request $request) use ($app) {
...
};
$after = function (Request $request) use ($app) {
...
};
$app->match('/user', function () use ($app) {
...
})
->before($before)
->after($after);
Sunday, 21 April 13
25. Using before() and after()
This can also be used globally, like so:
$app->before(function(Request $request) use ($app) {
...
});
You can also make an event be as early as possible, or as late as possible by
using Application::EARLY_EVENT and Application::LATE_EVENT, respectively.
$app->before(function(Request $request) use ($app) {
...
}, Application::EARLY_EVENT);
Sunday, 21 April 13
27. Summary
This is just a small amount of what Silex is capable
of, try it out.
Thank You!
http://silex.sensiolabs.org/
@chrisdkemper
http://chrisdkemper.co.uk
Sunday, 21 April 13
