Certain World - Certain Command to Player

Hello,

I am looking for help developing a plugin that sees when you are in a certain world such as 'hi' and executes a certain command to a certain player.
How can I do this?

Thanks!

i didn't understand, do you mean command only can be runned the world 'hi' ?

PHP:

if($event->getPlayer()->getLevel()->getName() == "playerMap" and $event->getPlayer()->getName() == "certainPlayer"){
#code
}


Thanks for help