php处理json 中文为空或者乱码问题。

function arrayToJson($array)
{

 arrayForRecursive($array, 'urlencode', true);
 $json = json_encode($array);
 $json = urldecode($json);
 return $json;

}

function arrayForRecursive(&$array, $function, $apply_to_keys_also=false)
{

 static $recursive_counter = 0;
 if (++$recursive_counter>1000)
      die('数组层次太深！');
 foreach ($array as $key=>$value)
 {
      if (is_array($value))
           arrayForRecursive($array[$key], $function, $apply_to_keys_also);
      else
           $array[$key] = $function(repalceSpecialSign($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--;

}

function struct2Array($item)
{

 if (!is_string($item))
 {
      $item = (array)$item;
      foreach ($item as $key=>$val)
      {
           $item[$key]  = Struct2Array($val);
      }
 }
 return $item;

}

/**

• repalceSpecialSign,替换特殊符号.
• @param str string 一个字符串
• @return str
  */
  function repalceSpecialSign($string)
  {
  $string = preg_replace(“/\s/“,““,$string);
  $string = str_replace(“\“,“\\“,$string);
  $string = str_replace(“'“,“\'“,$string);
  $string = str_replace(“"“,“\"“,$string);
  $string = str_replace(PHP_EOL,'',$string);
  $string = str_replace(“\n”,““,$string);
  $string = str_replace(“\r”,““,$string);
  return $string;
  }

调用arraytojson就行了。

http://www.pooy.net/original-php-json-function-json-format.html