Ключ API для получения видео каналов YouTube в PHP

Get API Key for YouTube

  Fill in whatever Project Name you want.
  Then click GoogleAPIs link in the top left corner and then click the link option called “YouTube Data API.” It's under YouTube API's. ...
  Now click on the “ENABLE” button.
  Next click on the blue 'Go to Credentials' button to the right.
Ankur