How does php display Unicode escape strings returned by curl? Such as "\u6b22\u8fce\u56de\u6765"

Question

php's curl returns string(42) "{"ret":1,"msg":"u6b22u8fceu56deu6765"}". Want to know how to display the correct text? "u6b22u8fceu56deu6765" corresponds to "Welcome back"

Answer 1

If you can handle the server side, you can control whether Chinese is not encoded through the second parameter of json_encode.
http://php.net/manual/zh/func...
If you can’t process the server, you can process the result returned by curl. First decode json, and then re-json_encode (also controlled according to the second parameter)

Answer 2

The answerer still didn't explain it in detail enough, so the newbie can only search slowly on the Internet...I found a perfect solution:

<?php
$arr = array('p1'=>'nihao','p2'=>2,'ch'=>'码农你好！');
$json = json_encode($arr);
echo decodeUnicode($json);

function decodeUnicode($str){
    return preg_replace_callback('/\\u([0-9a-f]{4})/i',
        create_function(
            '$matches',
            'return mb_convert_encoding(pack("H*", $matches[1]), "UTF-8", "UCS-2BE");'
        ),
        $str);
}
?>

Reference: http://www.manongjc.com/artic...