Incorrect Emoji while using "fileread" from json file

Question

MathWorks Support Team 2020-11-10

回答： MathWorks Support Team 2021-2-1

Why am I getting incorrect Emoji while using "fileread" from JSON file?

I am using MATLAB R2019a version.

Answer 1

'Fileread' uses a system-dependent encoding, which interprets the character differently on different platforms.

To get around this, you can instead call 'fopen'

>> fid = fopen(filename,'r','n','utf-8')
>> data = fread(fid,'*char')';
>> fclose(fid);

This should work, assuming the data is UTF-8 encoded.

Additionally, in MATLAB R2020a or later, 'fileread' function detects the encoding automatically.