PHP报错:Malformed UTF-8 characters, possibly incorrectly encoded

错误如下:
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Malformed UTF-8 characters, possibly incorrectly encoded 或中文乱码 (Uncaught InvalidArgumentException: Malformed UTF-8 characters, possibly incorrectly encoded in)
问题: Uncaught InvalidArgumentException: Malformed UTF-8 characters, possibly incorrectly encoded in

是返回的数据有特殊字符,编码转换回来就好了

mb_convert_encoding($value, 'UTF-8', 'UTF-8');

中文乱码可以用以下方法转码

$content = mb_convert_encoding( $result, 'UTF-8', 'UTF-8,GBK,GB2312,BIG5' );

意思就是把UTF-8,GBK,GB2312,BIG5这几种编码统一都转成UTF-8编码格式。
例如我的代码写法如下:

$res = mb_convert_encoding($result, 'UTF-8', 'UTF-8');
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