dongzhong2018 2013-05-14 09:21
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包含utf8字符的PHP utf8_encode [关闭]

Background: A part of my system uses utf8_encode to convert html code to utf8 format before passing it on to json_encode.

Problem: Everything was fine until I entered UTF8 characters(Chinese) into the system. I noticed that the mentioned UTF8 characters were encoded twice and came out garbled.

Sidenote: I have no experience with charset encoding and whatnot until now. Perhaps I don't need to use utf8_encode before json_encode since my database and connections are already set to utf8. Without the Chinese characters in the html code, mb_detect_encoding would return ASCII(not ISO-8859-1). But I couldn't get through json_encode without returning null... thus the use of utf_8 encode which worked until now.

Update: I finally solved the issue by typecasting the html code as string; via (string)$html; before assigning it to json_encode().

Thanks to all who posted here that led me to the final solution.

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  • duangou6446 2013-05-14 09:39
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    I had similar problem. Maybe this would help: try to use iconv();. I had some problems with Polish characters (ąężćźłóń etc.)  in encodings other that utf8 - when I used json_encode, there was no output. Everything went just fine after using iconv();. The catch is, you have to know source encoding before you proceed. If you don't know encoding, use mb_detect_encoding() as @Lukas suggested. Example:

    $content = iconv('ISO-8859-2','UTF-8', $content);
    echo json_encode(array('content' => $content));
    
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