Json_encode prevents conversion of Chinese characters to unicode. json_encodeunicode

Json_encode prevents conversion of Chinese characters to unicode. json_encodeunicode

As we all know, json_encode usually converts Chinese Characters in json to unicode, but this is not necessarily what we want. Sometimes, we need to obtain a json string in the Chinese character format, such as a json string encoded in gbk format (you only need to transcode the string in the Chinese character format ). Is there any good way?

Php officially heard this requirement and provided a reliable solution: JSON_UNESCAPED_UNICODE. This parameter ensures that json_encode no longer converts Chinese characters to unicode.

Does this seem to be solved? When we happily use this parameter, we find that there is no such thing. This parameter is only supported by php after 5.4. What should we do in the early stage of php?

The Community provides a solution:

function my_json_encode($arr){//convmap since x char codes so it takes all multibyte codes (above ASCII ). So such characters are being "hidden" from normal json_encodingarray_walk_recursive($arr, function (&$item, $key) { if (is_string($item)) $item = mb_encode_numericentity($item, array (x, xffff, , xffff), 'UTF-'); });return mb_decode_numericentity(json_encode($arr), array (x, xffff, , xffff), 'UTF-');}

However, this method is only supported by 5.3, because 5.2 does not support anonymous functions. As for the solution? Define an anonymous function.

Ps: Solve the Problem of json_encode Chinese UNICODE Transcoding

When PHP's json_encode is used to process Chinese characters, Chinese characters are encoded and become unreadable, similar to the "\ u ***" format. If you do not want to transcode Chinese characters, three methods are provided here.

1. Upgrade PHP. In PHP5.4, this problem was finally solved. Json added an option: JSON_UNESCAPED_UNICODE, so the name is Unicode, that is, Json does not encode Unicode.

<? Phpecho json_encode ("Chinese", JSON_UNESCAPED_UNICODE); // "Chinese"

2. urlencode the Chinese characters first and then use json_encode. After json_encode, use urldecode again to decode them. In this way, the Encoded chinese characters in the json array will not undergo unicode encoding.

$ Array = array ('test' => urlencode ("I'm a test"); $ array = json_encode ($ array); echo urldecode ($ array ); // {"test": "I'm a test "}

3. decodes the unicode code. The decoding function is as follows:

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);}

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