Is there a required number of publications for obtaining a PhD in your country?

Is there a specific number? Does the type of publications matter: National conference proceeding, International conference proceeding, peer-reviewed journal paper, paper in journal with certain impact-factor? Does citation of your published papers matter?

For example in Ukraine (where I am from) you have to publish at least 4 papers in National journals (there is a specific list of approved ones) and 1 paper abroad.