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nicolagi
nicolagi

Reputation: 1359

What is the encoding of an HTTP request?

When doing something like json_encode($_SERVER) I get an error because the input to be JSON-encoded is not valid UTF-8. In fact, I looked into this error and noticed some user agent strings were encoded in ISO-8859-1. How do I know what encoding was used for the HTTP request, so that I can use utf8_encode() or iconv() as appropriate to be able to JSON-encode the data?

Upvotes: 3

Views: 7468

Answers (1)

Adam D. Ruppe
Adam D. Ruppe

Reputation: 25595

From what I can tell, the standard doesn't say: http://www.w3.org/Protocols/rfc2616/rfc2616.html

A request body should have an encoding in a Content-Type header, but header values should be plain ascii. Anything beyond that isn't specified from what I can tell. I'm not sure that it is strictly wrong but there's apparently no standard you can use for a call to iconv.

What I would do is just loop through the string and remove any non-ASCII value. Maybe you could hack it out with a simple str_replace call or preg_replace remove non-ascii characters from string in php .

Upvotes: 1

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