About the PHP Json_encode () function _php Tutorial

Using the Json_encode () built-in function in PHP (PHP > 5.2) can be used in PHP to communicate well with other languages and use it.

The function is to convert a numeric value into a JSON data storage format.

 
  ' Shia ',          ' age ' =>20       ); $jsonencode = Json_encode ($arr); Echo $jsonencode; >

The results of the program run as follows:

{"Name": null, "Age": 20}

Json_encode function in Chinese is encoded as NULL, Google a bit, very simple, in order to closely integrate with the front, Json only support utf-8 encoding, I think is the front-end Javascript is also the reason for Utf-8.

 
  Iconv (' gb2312 ', ' utf-8 ', ' Here is the Chinese title '), ' body ' = ' abcd ... '); Echo Json_encode ($array);? >

The result of this program is:

{"title": "u8fd9u91ccu662fu4e2du6587u6807u9898", "Body": "ABCD ..."}

All the Chinese in the array have disappeared after the Json_encode, or appear u2353.

The workaround is to use the UrlEncode () function to handle the following, before Json_encode, all the contents of all arrays are processed with UrlEncode (), and then converted to a JSON string with Json_encode (), and then UrlDecode () Turn the encoded Chinese back.

  (' Possible deep recursion attack '); } foreach ($array as $key = + $value) {if (Is_array ($value)) {arrayrecursive ($array [$key], $funct        Ion, $apply _to_keys_also);        } else {$array [$key] = $function ($value);            } if ($apply _to_keys_also && is_string ($key)) {$new _key = $function ($key);                if ($new _key! = $key) {$array [$new _key] = $array [$key];            Unset ($array [$key]); }}} $recursive _counter--;} /************************************************************** * * Convert an array to a JSON string (Chinese language compatible) * @paramarray $array the array to convert *@ The JSON string converted by the return string * @access public * *************************************************************/function JSON ($array) {arrayrecursive ($array, ' UrlEncode ', true), $json = Json_encode ($array); return UrlDecode ($json);} $array = Array (' Name ' = ' Shia ', ' age ' =>20); Echo JSON ($array); >

This success, the results of the operation are as follows:

{"Name": "Shia", "Age": "20"}

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