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Patrick 2014-10-10 16:05:22 +02:00
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7-inversion-of-control.md
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### Inversion of Control
In the last part you have set up a controller and were able to generate output with `echo`. But let's not forget that you have a nice object oriented HTTP abstraction available. But you still need to make it accessible inside the controller class.
In the last part you have set up a controller and generated output with `echo`. But let's not forget that you have a nice object oriented HTTP abstraction available. But right now it's not accessible inside your class.
The sane option is to use [inversion of control](http://en.wikipedia.org/wiki/Inversion_of_control). This means that instead of giving the class the responsiblity of creating the object it needs, you just ask for them. This is done with [dependency injection](http://en.wikipedia.org/wiki/Dependency_injection).