Convert Chinese characters to character encoding in php

Question

Currently I am using json_encode to solve the problem, but I have to manually filter out the extra quotes. Does PHP have a function that directly handles the conversion of UTF8 Chinese into character encoding? Example: I \u6211

怪我咯 · Answer

Find the answer you want on Segmentfaultthis website, PHP realizes the mutual conversion between Unicode and Utf-8 encoding;