The popular online "PK" usually referred to "PK"(Php), which meant "Php Ken"(Php ") was a popular multiplayer online game on the Minecraft server. In this game, players could play different roles such as warriors, mages, thieves, etc. by fighting with other players to obtain money, resources, and other rewards. "PK" can also refer to "publicly Played"(played on the public screen), which is usually seen on some social media platforms. It is a live broadcast or video recording of someone in the game, such as interacting with other people in the game or competing with other players. These live broadcasts or videos usually attract a lot of attention from the audience and some people will watch and learn and imitate these behaviors.