JavaScript到PHP-POST编码问题

Question

I'm attempting to send a string from client-side JavaScript to a back-end PHP script. The string contains special quotes like ' and “ .

When I look at the console in Chrome I can see that these are sent in the POST headers as they are. On the PHP side I then immediately json_encode() the $_POST array and send it back to see what its collected. The special characters now look like this \’ . This is for testing please note I would normally sanitize all post data.

I wish to use UTF-8 but I'm not sure what I'm missing. My HTML includes:

<meta charset="utf-8">

My PHP server has UTF-8 set as its default charset.

If I start saving such data to the database I start ending up with strings like this: âÂÂ for ' . However this is not a database issue the characters are already bad before going into the database. MySQL purely accentuates them.

Any ideas?

Update

I've noticed that if I return the string back to javascript without using json_encode() then it's in its original format with the special quotes ( ' and “ ) still.

Answer 1

Have you tried:

utf8_decode()

On the server side for the variables you're passing? PHP is likely expecting iso-8859-1 rather than uft-8 .

Answer 2

Turns out there was an issue both sides of the pond. The issue PHP side which this question regards was that the data was being sent to the back-end via a GET request (url encoded). I have changed this to a POST request.

This has allowed me to specify the UTF-8 charset when sending the headers for the POST request.