Image size problem

To further extend the question a bit: I′d love to see some documentation about how to make use of the new responsive images feature implemented in WP 4.4 – are there any plans?
How can I implement srcset and sizes attributes for those images in my sample? Would you recommend to do so?

Regarding the responsive stuff, not sure. It should be auto-handled when it comes to WP core functions that we use when we can.

Regarding the first part, I can see you’re setting an $image variable at the top of the script, fetching the medium size, but you never actually use it anywhere. Once you get down to the foreach loop, you echo out the image src for whatever is in that array at the time. Perhaps that’s where you’re mixing things up?

First off: Happy New Year!

Once you get down to the foreach loop, you echo out the image src for whatever is in that array at the time. Perhaps that’s where you’re mixing things up?

Thanks and I′m very sure you are perfectly right.

If you say I never actually use it anywhere – how would I correctly echo out that size I′m fetching OR do it a way that the responsive stuff is auto-handled by WP (like it is for other content pics), is the variable useful that way, or is there a better/more efficient way to do that? (Sorry – my first try with CMB2 actually)

Well, you have the medium image stored in the $image variable on line 8, but as noted, you don’t do anything with it. So you’d just want to replace $value['image'] on line 24 with $image and go from there. Not really something specific to CMB2, but just PHP in general.

Thanks for your patience. I′m well aware I need to improve my “PHP in general”. You are right – I did a great job in storing things for no reason. LOL Also I missed the _id needed for the image. I′ll just try to blame the New-Years party. ??

I finally succeeded with dropping those three variables that weren′t needed/used at all and echo like so (just in case somebody else might have a use, too):
echo '<div class="team one-third' . $class .'">' . wp_get_attachment_image( $value['image_id'], 'medium' ) . '<h3>' . $value['title'] . '</h3><p>' . $value['description'] . '</p></div>';

Neither finished nor perfect yet, but another step forward.

Hurrah! Glad you found your way forward here and are at a better spot with the code.

Let us know if you need any other help.