json_encode with JSON_UNESCAPED_UNICODE not working properly

Question

I am trying to manipulate a JSON file with PHP and am encountering the problem, that the function

$json = json_encode($cd, JSON_UNESCAPED_UNICODE);

is not working properly.

Code:

    <?php 
    $contents = file_get_contents('file.json');
    $ut=  utf8_encode($contents);
    $cd = json_decode($ut, true);        
    $cd['File'][0]['Name']="AnotherName"; 
    $json = json_encode($cd, JSON_UNESCAPED_UNICODE);
    file_put_contents('general.json', $json);
    ?>

The manipulating is working, however there are some ä,ö,ü and / symbols, which are changed to Ã¤... and / in the output file. Is there any way to fix that?

Thanks

deceze · Accepted Answer · 2016-03-18 11:04:37Z

1

Assuming your file.json contains actual valid JSON encoded in UTF-8, the only issue you have is that you're messing up your encoding by using utf8_encode on it. utf8_encode converts from ISO-8859-1 to UTF-8, which is unnecessary since your input is not ISO-8859-1. The problem has nothing to do with the json_encode function.

Consider reading What Every Programmer Absolutely, Positively Needs To Know About Encodings And Character Sets To Work With Text.

answered Mar 18, 2016 at 11:04

deceze♦

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