JSON Encode Failed

[austinh]

JSON encoding failed: Malformed UTF-8 characters, possibly incorrectly encoded. Encoding: array (

I upgraded my symfony composer files lately, and got this error. This does not happen in 1.14.0. The latest change in "Fixed JSON encoding errors being silently suppressed (PHP 5.5+ only)" caused this error.

I am using this in conjunction with SNCRedis Bundle to store sessions in redis.

Is there any way sncredisbundle can utf8_encode the log message?
The session is saved fine and everything else works, its purely the logging.
I have also created a bug at SncRedisBundle git because it may be an issue with their code.

[Seldaek]

I believe this is usually indicating a malformed UTF-8 message yes, but maybe I made a mistake, can you link to that SncRedis issue?

[austinh]

snc/SncRedisBundle#193

[ckmaresca]

I don't know if this is relevant, but there are a bunch of options that you can use with json_encode to deal with odd characters that cause encoding to fail. They are described here: http://php.net/manual/en/json.constants.php - specifically JSON_HEX_* and JSON_UNESCAPED_*

I would note that this is a pain in PHP as it's not obvious that you need these options for things to work and json_encode has a habit of failing silently with no exception to trap....

[Seldaek]

I'm gonna assume this gets fixed by #683 as there is no clear repro case I can't verify but it most likely is covered too.

@ckmaresca for the record, JSON_HEX and JSON_UNESCAPED do nothing to prevent these errors unfortunately, they merely tweak the way things are encoded by default, but that only concerns valid UTF-8 strings. Non-UTF-8 can not be encoded to json as the format mandates Unicode strings.