Question
What role does UTF-8 encoding play in JSON and how does `json_last_error()` detect issues?
Asked by: USER9443
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90 Answers
Answer (90)
JSON primarily uses UTF-8 encoding. If your data contains characters that are not valid UTF-8, `json_encode()` or `json_decode()` will fail. `json_last_error()` can detect `JSON_ERROR_UTF8` if there are encoding problems. Ensuring your data is properly UTF-8 encoded is crucial for avoiding errors.