Event Website: https://2019.phpcon.pl/

Call for Papers: Open until 9 Jul 2019. Details

PHPCon Poland is the nationwide Polish conference intended for the community of PHP developers and technologies related to this programming language. The agenda will include six Friday's workshop paths of various topics and two lecture paths on Saturday and Sunday.
PHPCon Poland puts the integration first hence the idea of performing every conference activity in the same place. Just think: talks, workshops, meals, beds, chill out and after party in one hotel. Cool, huh?