Many Thanks Brett,

I got hold of a fresh copy of the auth.ini file from here: 
https://code.google.com/p/google-api-adwords-php/source/browse/src/Google/Api/Ads/AdWords/auth.ini

It turns out I had [OAUTH2] Commented out, which would explain why the api 
was asking for username and password, that makes sense.

So I'm one step closer, now I'm just getting this error:

Your OAuth2 Credentials are incorrect. Please see the GetRefreshToken.php 
example. access_token required.

Cheers! The saga continues.

On Wednesday, September 4, 2013 5:56:40 PM UTC+1, Brett Baggott wrote:
>
> Alan, I'm not a PHP dev but I've taken a look at the PHP Client Library 
> and it _seems_ you've gone through the right steps. I can't imagine why 
> you'd get the email null error using OAuth2 verification if you've gone 
> through the steps to get a valid refresh token. Maybe this would happen if 
> the email address for your Application associated with the refresh token 
> was blank but that couldn't be the case.
>
> Anyway, the best advice I can offer you is to turn on logging in your 
> settings.ini file and see if the log file doesn't give you a better idea of 
> what and where it's breaking. It's helped me solve seemingly unsolvable 
> problems.
>
> Hope this helps,
> ~Brett
>
> On Tuesday, September 3, 2013 1:36:05 PM UTC-5, Alan Coleman wrote:
>>
>> Hello everyone,
>>
>> I have completed my OAuth2 set up but am still receiving errors asking 
>> for the email and password pair.
>>
>> This was my process, as per the documentation:
>>
>>
>>    1. Set up an application in the API Console
>>    2. client_id and client_secret added to auth.ini
>>    3. client_id and client_secret added to GetRefreshToken.php
>>    4. Run GetRefreshToken.php through command line
>>    5. Open the supplied URL in a browser after signing in to account
>>    6. Accept when prompted
>>    7. Copy Authorization code back into command line
>>    8. Wait for refresh_token
>>    9. Copy refresh_token into auth.ini
>>    10. Run 
>>    
>> /adwords_api_php_4.5.1/examples/AdWords/v201302/BasicOperations/GetCampaigns.php
>>    
>>
>> The following error is being returned to the browser:
>>
>> An error has occured: Validation failed for [email] with value []: email 
>> is required and cannot be NULL.
>>
>> My auth.ini contains the following variables that are not coded out:
>>
>>
>>    1. developerToken 
>>    2. userAgent
>>    3. client_id
>>    4. client_secret
>>    5. refresh_token
>>    
>> I simply can't believe I'm finding this so difficult, I've been hacking 
>> away at it for weeks.
>>
>> As always, any help would be appreciated.
>>
>> Many thanks
>>
>>

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