enabling components

Everything I have read, has said that to enable a component from a script on an object all I need to do is: GetComponent ().enabled = true;

FirstPersonController is a script, that is on a component of my 'player'.

I have it disabled with the idea of enabling it on multiplayer, so the server does not control all of the players.

I have read in the manual and api, watched videos and read countless forums, and it always comes back to the string listed above.

I;m using unity 5, has the api changed for this drastically?

I have also tried creating a pulic var as it kinda says on this page: http://docs.unity3d.com/ScriptReference/Component.GetComponent.html

so can any of you shed some light on this for me please? any suggestions of something to try next?

Thanks, Kevin

 void Update()
     {
         nView = GetComponent<NetworkView>();
 
         if (nView.isMine)
         {
             rigidbody.useGravity = true;
             GetComponent<FirstPersonController> ().enabled = true;
             
             foreach(Camera cam in GetComponentsInChildren<Camera>())
                 cam.enabled = true;
         }
 
     }

I have also tried:

 private NetworkView nView;
 public Rigidbody rigidbody;
 // these are on the code snip above too
 
 private FirstPersonController fpc;
 void Update()
     {
         nView = GetComponent<NetworkView>();
                 fpc = GetComponent<FirstPersonController> ()
         if (nView.isMine)
         {
             rigidbody.useGravity = true;
             fpc.enabled = true;
             
             foreach(Camera cam in GetComponentsInChildren<Camera>())
                 cam.enabled = true;
         }
 
     }

The reason I ask if it has changed drastically is because, every code snip I try, even the ones from unity3d.com/learn seem to have problems with 5. I can copy and paste them to 4.6 and they work fine, but with 5 I seem to always have to manipulate them to work. So I guess the drastically was more afraid there have been changes but the documentation isn't reflecting current api across the board.

@gjf thanks for pointing out my post was incomplete. I have edited per your suggestions.