Which is best to invest time and strength on => php or node.js{JavaScript}

Answer 1

Node.js developers are on high demand these days.

Now think, which you wanna invest?

Answer 2

I prefer Node :) there's a great demand of NodeJS developer.

Answer 3

from me to you php will take you few hours to get familiar to and utmost a week to master the beast to a mid lvl;
knowing that a big majority of old servers are in php ... it's worth having a glance at least and then move on if you want