Add leading zeros so that files list in correct order

Fix all links to new file names

01-front-controller.md

@@ -1,4 +1,4 @@
-[next >>](2-composer.md)
+[next >>](02-composer.md)
 
 ### Front Controller
 
@@ -40,4 +40,4 @@ If there is an error, go back and try to fix it. If you only see a blank page, c
 
 Now would be a good time to commit your progress. If you are not already using Git, set up a repository now. This is not a Git tutorial so I won't go over the details. But using version control should be a habit, even if it is just for a tutorial project like this.
 
-[next >>](2-composer.md)
+[next >>](02-composer.md)

02-composer.md

@@ -1,4 +1,4 @@
-[<< previous](1-front-controller.md) | [next >>](3-error-handler.md)
+[<< previous](01-front-controller.md) | [next >>](03-error-handler.md)
 
 ### Composer
 
@@ -51,4 +51,4 @@ This will exclude the included file and folder from your commits. For which now
 
 Now you have successfully created an empty playground which you can use to set up your project.
 
-[<< previous](1-front-controller.md) | [next >>](3-error-handler.md)
+[<< previous](01-front-controller.md) | [next >>](03-error-handler.md)

03-error-handler.md

@@ -1,4 +1,4 @@
-[<< previous](2-composer.md) | [next >>](4-http.md)
+[<< previous](02-composer.md) | [next >>](04-http.md)
 
 ### Error Handler
 
@@ -59,4 +59,4 @@ throw new \Exception;
 
 You should now see a error page with the line highlighted where you throw the exception. If not, go back and debug until you get it working. Now would also be a good time for another commit.
 
-[<< previous](2-composer.md) | [next >>](4-http.md)
+[<< previous](02-composer.md) | [next >>](04-http.md)

04-http.md

@@ -1,4 +1,4 @@
-[<< previous](3-error-handler.md) | [next >>](5-router.md)
+[<< previous](03-error-handler.md) | [next >>](05-router.md)
 
 ### HTTP
 
@@ -61,4 +61,4 @@ Remember that the object is only storing data, so you if you set multiple status
 
 I will show you in later parts how to use the different features of the components. In the meantime, feel free to read the [documentation](https://github.com/PatrickLouys/http) or the source code if you want to find out how something works.
 
-[<< previous](3-error-handler.md) | [next >>](5-router.md)
+[<< previous](03-error-handler.md) | [next >>](05-router.md)

05-router.md

@@ -1,4 +1,4 @@
-[<< previous](4-http.md) | [next >>](6-dispatching-to-a-class.md)
+[<< previous](04-http.md) | [next >>](06-dispatching-to-a-class.md)
 
 ### Router
 
@@ -76,4 +76,4 @@ $dispatcher = \FastRoute\simpleDispatcher($routeDefinitionCallback);
 
 This is already an improvement, but now all the handler code is in the `Routers.php` file. This is not optimal, so let's fix that in the next part.
 
-[<< previous](4-http.md) | [next >>](6-dispatching-to-a-class.md)
+[<< previous](04-http.md) | [next >>](06-dispatching-to-a-class.md)

06-dispatching-to-a-class.md

@@ -1,4 +1,4 @@
-[<< previous](5-router.md) | [next >>](7-inversion-of-control.md)
+[<< previous](05-router.md) | [next >>](07-inversion-of-control.md)
 
 ### Dispatching to a Class
 
@@ -53,4 +53,4 @@ So instead of just calling a method you are now instantiating an object and then
 
 Now if you visit `http://localhost:8000/` everything should work. If not, go back and debug. And of course don't forget to commit your changes.
 
-[<< previous](5-router.md) | [next >>](7-inversion-of-control.md)
+[<< previous](05-router.md) | [next >>](07-inversion-of-control.md)

07-inversion-of-control.md

@@ -1,4 +1,4 @@
-[<< previous](6-dispatching-to-a-class.md) | [next >>](8-dependency-injector.md)
+[<< previous](06-dispatching-to-a-class.md) | [next >>](08-dependency-injector.md)
 
 ### Inversion of Control
 
@@ -48,4 +48,4 @@ The `Http\HttpResponse` object implements the `Http\Response` interface, so it f
 
 Now everything should work again. But if you follow this example, all your objects that are instantiated this way will have the same objects injected. This is of course not good, so let's fix that in the next part.
 
-[<< previous](6-dispatching-to-a-class.md) | [next >>](8-dependency-injector.md)
+[<< previous](06-dispatching-to-a-class.md) | [next >>](08-dependency-injector.md)

08-dependency-injector.md

@@ -1,4 +1,4 @@
-[<< previous](7-inversion-of-control.md) | [next >>](9-templating.md)
+[<< previous](07-inversion-of-control.md) | [next >>](09-templating.md)
 
 ### Dependency Injector
 
@@ -94,4 +94,4 @@ As you can see now the class has two dependencies. Try to access the page with a
 
 Congratulations, you have now successfully laid the groundwork for your application. 
 
-[<< previous](7-inversion-of-control.md) | [next >>](9-templating.md)
+[<< previous](07-inversion-of-control.md) | [next >>](09-templating.md)

09-templating.md

@@ -1,4 +1,4 @@
-[<< previous](8-dependency-injector.md) | [next >>](10-dynamic-pages.md)
+[<< previous](08-dependency-injector.md) | [next >>](10-dynamic-pages.md)
 
 ### Templating
 
@@ -136,4 +136,4 @@ Now you can go back to your `Homepage` controller and change the render line to
 
 Navigate to the hello page in your browser to make sure everything works. And as always, don't forget to commit your changes.
 
-[<< previous](8-dependency-injector.md) | [next >>](10-dynamic-pages.md)
+[<< previous](08-dependency-injector.md) | [next >>](10-dynamic-pages.md)

10-dynamic-pages.md

@@ -1,4 +1,4 @@
-[<< previous](9-templating.md)
+[<< previous](09-templating.md)
 
 ### Dynamic Pages
 
@@ -223,4 +223,4 @@ Try a few different URLs to check that everything is working as it should. If so
 
 And as always, don't forget to commit your changes.
 
-[<< previous](9-templating.md)
+[<< previous](09-templating.md)

README.md

@@ -10,17 +10,17 @@ I saw a lot of people coming into the Stack Overflow PHP chatroom and asking if
 
 So my goal with this is to provide an easy resource that people can be pointed to. In most cases a framework does not make sense and writing an application from scratch with the help of some third party packages is much, much easier than some people think.
 
-So let's get started right away with the [first part](1-front-controller.md).
+So let's get started right away with the [first part](01-front-controller.md).
 
 ### Parts
 
-1. [Front Controller](1-front-controller.md)
-2. [Composer](2-composer.md)
-3. [Error Handler](3-error-handler.md)
-4. [HTTP](4-http.md)
-5. [Router](5-router.md)
-6. [Dispatching to a Class](6-dispatching-to-a-class.md)
-7. [Inversion of Control](7-inversion-of-control.md)
-8. [Dependency Injector](8-dependency-injector.md)
-9. [Templating](9-templating.md)
+1. [Front Controller](01-front-controller.md)
+2. [Composer](02-composer.md)
+3. [Error Handler](03-error-handler.md)
+4. [HTTP](04-http.md)
+5. [Router](05-router.md)
+6. [Dispatching to a Class](06-dispatching-to-a-class.md)
+7. [Inversion of Control](07-inversion-of-control.md)
+8. [Dependency Injector](08-dependency-injector.md)
+9. [Templating](09-templating.md)
 10. [Dynamic Pages](10-dynamic-pages.md)