'Find the "bad control character" that json_decode fails on in PHP?

I have a lot of JSON strings that are 25-50Kb each. I convert these to arrays with json_decode() and it works fine almost every time... But now I have ran into problem, since some of these strings seems to have some bad control character inside.

This is a part of my code that tries to decode the JSON strings to an array:

$data_arr = json_decode($json_data, true, 512, JSON_INVALID_UTF8_IGNORED);

if (is_null($data_arr)) {
   die(json_last_error_msg()); // --> JSON: Unexpected control character found 
}

Now I need to find which character that is "unexpected" in order to remove/change that character before I run the json_decode(). Is there a way to find the bad character that generates the error?

phpjson


Solution 1:[1]

The bearer token is not properly provided.

kindly recheck whether the word 'Bearer' is mentioned twice.see here.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Ekansh Srivastva

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