Chapters

11 Chapters | 1:02:30 |

01

Interrupt Symfony with an Event Subscriber

8:40
02

HttpKernel::handle() The Heart of Everything

5:46
03

kernel.request and the RouterListener

9:48
04

Finding and Instantiating the Controller

6:42
05

kernel.controller Event & Controller Arguments

5:54
06

The kernel.view Event

3:17
07

Finishing with kernel.response and kernel.exception

5:34
08

Symfony Magic: Replace the _controller

2:23
09

Making an Argument Available to All Controllers

3:57
10

What about Sub Requests?

4:31
11

How Sub-Requests Work

5:58

This tutorial has a new version, check it out!

> Symfony 3 > Journey to the Center of Symfony: HttpKernel Request-Response

Buy Access to Course

05.

kernel.controller Event & Controller Arguments

|

Autoplay

Keep on Learning!

If you liked what you've learned so far, dive in! Subscribe to get
access to this tutorial plus video, code and script downloads.

Start your All-Access Pass

Buy just this tutorial for $9.00

Previous Chapter

Next Chapter

Login or register to check out the script

2 Comments

Sort By

Login or Register to join the conversation

Andrew Grudin 8 years ago

return $this->mergeDefaults(array_replace($matches, array('_route' => 'genus_show')), array ( '_controller' => 'AppBundle\\Controller\\GenusController::showAction',))

Please, tell me, how: \\ transforms to: \ ?
If, let say :

protected function mergeDefaults($params, $defaults)
{
dump($defaults);die;

We get:

array:1 [▼

"_controller" => "AppBundle\Controller\GenusController::showAction"

]

2 |

weaverryan SFCASTS Andrew Grudin 8 years ago edited

Hey Andrew!

Yes, I can see why this might look confusing! Here is the reason: http://php.net/manual/en/language.namespaces.faq.php#language.namespaces.faq.quote

The problem is that \ is also the escaping character in PHP. When you have a string in single-quotes, that's no problem - the \ is not treated special in single quotes. But in double-quotes, you may need to double-escape the slash (i.e. \), else it may treat the next character like a special character. Even though this isn't a problem with single quotes, we often double-slash for consistency. Here's some code to back this up:


echo 'Some\\namespace\\GenusController';
// prints Some\namespace\GenusController
// the \\ has no effect, are turned into \

echo "Some\namespace\GenusController";
// prints
// Some[LINE BREAK]amespace\GenusController
// the \n looks like a line break

Cool question!

1 |

Symfony 2

What PHP libraries does this tutorial use?

// composer.json
{
    "require": {
        "php": ">=5.3.3",
        "symfony/symfony": "2.6.x-dev", // 2.6.x-dev
        "doctrine/orm": "~2.2,>=2.2.3", // v2.4.6
        "doctrine/doctrine-bundle": "~1.2", // v1.2.0
        "twig/extensions": "~1.0", // v1.2.0
        "symfony/assetic-bundle": "~2.3", // v2.5.0
        "symfony/swiftmailer-bundle": "~2.3", // v2.3.7
        "symfony/monolog-bundle": "~2.4", // v2.6.1
        "sensio/distribution-bundle": "~3.0", // v3.0.9
        "sensio/framework-extra-bundle": "~3.0", // v3.0.3
        "incenteev/composer-parameter-handler": "~2.0", // v2.1.0
        "hautelook/alice-bundle": "~0.2" // 0.2
    },
    "require-dev": {
        "sensio/generator-bundle": "~2.3" // v2.4.0
    }
}

Previous Chapter

Next Chapter