I have Ubuntu 16.04 LTS running with PHP7 and phpmyadmin installed. However, I get a lot of deprecation notices like:
Depre
Dear @BeniaminPantiru your answer is correct but your solution is not solve the problem because you are telling the Apache to don't show the deprecation errors rather than fix the errors. but we can easily fix this error by upgrade the necessary security updates and packages. type the following command will solve the problem.
sudo apt-get dist-upgrade