json解析解决方案

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function arrayRecursive(&$array, $function, $apply_to_keys_also = false)
{
    static $recursive_counter = 0;
    if (++$recursive_counter > 1000) {
        die('possible deep recursion attack');
    }
    foreach ($array as $key => $value) {
        if (is_array($value)) {
            arrayRecursive($array[$key], $function, $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--;
}
 
/**************************************************************
 *
 *    将数组转换为JSON字符串（兼容中文）
 *    @param    array    $array        要转换的数组
 *    @return string        转换得到的json字符串
 *    @access public
 *
 *************************************************************/
function JSON($array) {
    arrayRecursive($array, 'urlencode', true);
    $json = json_encode($array);
    $json = urldecode($json);
    $json = str_replace("\"false\"","false",$json);
        $json = str_replace("\"true\"","true",$json);
        return $json;
    
}

function get_goodbook() {
       $sql = "select * from `wiki_doc`";
       $data=$this->db->getAll($sql);    
       return JSON($data);
    }

$ar = array (
  '这里是 GBK 编码的数据',
  array(
    '这是一个测试',
    '这还是一个测试',
  ),
);

echo $s = json_encode( array_map('gb2utf',$ar));
print_r(array_map('utf2gb', json_decode($s)));


function gb2utf($v) {
  if(! is_array($v)) return iconv('gbk', 'utf-8', $v);
  foreach($v as &$t) $t = gb2utf($t);
  return $v; 
}

function utf2gb($v) {
  if(! is_array($v)) return iconv('utf-8', 'gbk', $v);
  foreach($v as &$t) $t = utf2gb($t);
  return $v; 
}
<br><font color="#e78608">------解决方案--------------------</font><br>首先将数组转成utf-8的就可以编码中文了，没必要去写很多其它代码 <div class="clear"></div>