Ask for php and socket experts. what kind of data format is this?

Ask for php, a socket expert, and check what type of data format I sent in hexadecimal format, however, when we get to the packet capture tool, we don't know what kind of data format he translated into. in the shadow shown in the figure, we can find php and socket experts in hexadecimal notation, see what type of data format this is.


I sent hexadecimal data, but when I got to the packet capture tool, I didn't know what type of data format he translated it into. see the shadow in the figure below.








------ Solution --------------------
Hexadecimal