What to do if the json format is incorrect in WeChat development

Problem:

When using PHP language for WeChat development, a data format error occurs when creating a coupon, and the error return information is as follows:

{“errcode”:47002,”errmsg”:”data format error, do NOT use json unicode encode (\uxxxx\uxxxx), please use utf8 encoded text! hint: [udJhFa0680e569]”}

Solution:

Just add the parameter JSON_UNESCAPED_UNICODE when using the json_encode function in PHP, such as:

json_encode($arr,JSON_UNESCAPED_UNICODE)

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