phpCE 2017 was held last november in Rawa Mazowiecka in Poland. The organisers recently released videos of all the talks. You'll can watch them all using this YouTube playlist: https://www.youtube.com/playlist?list=PLWKBHVGdyqQKjzraZqkQ69PJQmnGdXrVa

Here's the recording of Hannes Van de Vreken's talk on IoC containers.