Could you guys tell me how to begin with coding?
I really want to learn coding(js,php,java,C)but I don't really know how to begin.
Help would be nice!
Like links to some learning websites/programms or so

Try codecademy.com or find a YouTube tutorial

Google is your friend.
I suggest you to avoid videos use text tutorials because you can skip boring parts and jump at any point quickly (and the most important thing, you can use CTRL+F)

Copy and paste* something then try to change it and run it again.

*Copy&paste is not a good practice (but everyone does it ;-) ) however is a quick way to make something that works and you will not get bored.