PHP json_encode umlauts

Question

I'm getting json strings from an HTTP API. The content type is Content-Type: application/json; charset=UTF-8.

I then proceed to write the strings to a file using.

fwrite($fp, json_encode($post));

The strings contain encodings for umlauts as follows.

Au\u00dfenministerium verh\u00e4ngte Reisewarnung f\u00fcr Kroatien in Kraft getreten.

This should be.

Außenministerium verhängte Reisewarnung für Kroatien in Kraft getreten.

How can I encode the strings to write umlauts to files and not their encoding?

I tried the following.

<?php
$string = "Au\u00dfenministerium verh\u00e4ngte Reisewarnung f\u00fcr Kroatien in Kraft getreten.";
$string = utf8_encode($string);
echo $string;

The output of this script still shows the encoding.

Do you have the html tag <meta charset="utf-8"> on the page? — gbalduzzi
– gbalduzzi, Commented Aug 19, 2020 at 15:10
I'm not using html. My code is a php script. The full code is here github.com/michaelhochleitner/php_utf8/blob/master/… . — Osvald Laurits
– Osvald Laurits, Commented Aug 19, 2020 at 15:21
Stop using utf8_encode(), it's a terribly-named function that doesn't do what you think it does. It's a forced conversion that doesn't detect or care about the input encoding and will corrupt your data more often than not. Same goes for utf8_decode(). — Sammitch
– Sammitch, Commented Aug 19, 2020 at 17:01

trincot · Accepted Answer · 2020-08-19 15:14:08Z

4

That is the default behaviour of the json_encode function, but you can override this by specifying the JSON_UNESCAPED_UNICODE option. So for example:

json_encode("Außenministerium", JSON_UNESCAPED_UNICODE);

And in your code you should do:

fwrite($fp, json_encode($post, JSON_UNESCAPED_UNICODE));

Also check out which other options you can use in the documentation

answered Aug 19, 2020 at 15:14

trincot

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