PHP reads mssql2008, json data is garbled in Chinese

PHP and web pages use UTF-8 encoding, the database is sql server2008, and the default encoding (936, GBK encoding) is used
When reading database data, use the json_encode() that comes with PHP to return to the front end, and the results will not be displayed in Chinese.

Solution:

employeeGet.php 
<?php     
    header("Content-Type: text/html;charset=utf-8"); 
    //告诉浏览器不要缓存数据  
    header("Cache-Control: no-cache");   
     
    require "../conn.php"; 
    require "../share/json_gbk2utf8.php"; 
 
    $query = &#39;SELECT  
                seq, 
                employeeID, 
                employeeName, 
                department, 
                position, 
                sex, 
                birthday, 
                entryTime, 
                description, 
                convert(varchar(20),createTime,120) as createTime,<SPAN style="COLOR: #ff0000">//这里要注意，因为mssql2008的datetimne类型是带有毫秒的，直接在前端显示  
可能会有问题，所以要做一次转换</SPAN> 
                convert(varchar(20),updateTime,120) as updateTime                            
            FROM employees&#39;;     
    $arr = Array(); 
    $query = iconv("utf-8", "gbk//ignore", $query);//为了解决中文乱码问题  
    if($result = sqlsrv_query($conn, $query)){ 
        while($row = sqlsrv_fetch_array($result)){ 
            $arr[] = $row;           
        } 
    } 
    $data = JSON($arr); 
//  file_put_contents("E:/mylog.log", "JSON:".$data."\r\n", FILE_APPEND);     
    echo $data; 
?> 

employeeGet.php
<?php 
 header("Content-Type: text/html;charset=utf-8");
 //告诉浏览器不要缓存数据
 header("Cache-Control: no-cache"); 
 
 require "../conn.php";
 require "../share/json_gbk2utf8.php";

 $query = &#39;SELECT
    seq,
    employeeID,
    employeeName,
    department,
    position,
    sex,
    birthday,
    entryTime,
    description,
    convert(varchar(20),createTime,120) as createTime,//这里要注意，因为mssql2008的datetimne类型是带有毫秒的，直接在前端显示
可能会有问题，所以要做一次转换
    convert(varchar(20),updateTime,120) as updateTime       
   FROM employees&#39;; 
 $arr = Array();
 $query = iconv("utf-8", "gbk//ignore", $query);//为了解决中文乱码问题 
 if($result = sqlsrv_query($conn, $query)){
  while($row = sqlsrv_fetch_array($result)){
   $arr[] = $row;   
  }
 }
 $data = JSON($arr);
//  file_put_contents("E:/mylog.log", "JSON:".$data."\r\n", FILE_APPEND); 
 echo $data;
?>

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? //json_gbk2utf8.php
/***************************************************** **********
*In order to implement json encoding of arrays containing Chinese characters
*
* Use a specific function to process all elements in the array
* @param string &$array The string to be processed
* @param string $function The function to be executed
* @return boolean $apply_to_keys_also Whether to also apply to keys
* @access public
*
*************************************************** ***********/
function arrayRecursive(&$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, $apply_to_keys_also);
        } else {
//          file_put_contents("E:/mylog.log", "原始:".$value."rn", FILE_APPEND);
            $value = iconv("gbk//ignore", "utf-8", $value);
//          file_put_contents("E:/mylog.log", "utf-8:".$value."rn", FILE_APPEND);
            $array[$key] = $function($value);
//          file_put_contents("E:/mylog.log", "urlencode:".$array[$key]."rn", FILE_APPEND);
        }

        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 array to JSON string (compatible with Chinese)
* @param array $array The array to be converted
* @return string The converted json string
* @access public
*
*************************************************** ***********/
function JSON($array) {
    arrayRecursive($array, 'urlencode', true);
    $json = json_encode($array);
    return urldecode($json);
}
/*
$array = array
(
        'Name'=>'希亚',
        'Age'=>20
);

echo JSON($array);
*/
?>

//json_gbk2utf8.php
/***************************************************** **********
*In order to implement json encoding of arrays containing Chinese characters
*
* Use a specific function to process all elements in the array
* @param string &$array The string to be processed
* @param string $function The function to be executed
* @return boolean $apply_to_keys_also Whether to also apply to keys
* @access public
*
*************************************************** ***********/
function arrayRecursive(&$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, $apply_to_keys_also);
} else {
// file_put_contents("E:/mylog.log", "原始:".$value."\r\n", FILE_APPEND);
$value = iconv("gbk//ignore", "utf-8", $value);
// file_put_contents("E:/mylog.log", "utf-8:".$value."\r\n", FILE_APPEND);
$array[$key] = $function($value);
// file_put_contents("E:/mylog.log", "urlencode:".$array[$key]."\r\n", FILE_APPEND);
}

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);
return urldecode($json);
}
/*
$array = array
(
'Name'=>'希亚',
'Age'=>20
);

echo JSON($array);
*/

这样，sql server 2008中的中文就可以在网页正常显示了。

如果要将中文正常插入到sql server 2008中，还要加入一条代码：$query = iconv("utf-8", "gbk//ignore", $query);//为了解决中文乱码问题

完整代码如下：

<?php  
    /**
     * 如果员工编号在MySql中不存在则在MySql中插入员工记录
     * 如果该员工编号已经存在则进行更新操作
     */ 
    //如果用JSON格式则要使用text/html，不能使用text/xml  
    header("Content-Type: text/html;charset=utf-8"); 
//  header("Content-Type: text/html;charset=GBK");  
    //告诉浏览器不要缓存数据  
    header("Cache-Control: no-cache"); 
     
    require &#39;../conn.php&#39;; 
    $seq = $_POST["seq"]; 
    $employeeID = $_POST["employeeID"]; 
    $employeeName = $_POST["employeeName"]; 
    $department = $_POST["department"]; 
 
    if(!isset($seq) || $seq == ""){//seq不存在则插入新记录  
        $query = "INSERT INTO employees (employeeID, employeeName, department,  
                    createTime, updateTime) 
                VALUES (N&#39;$employeeID&#39;,N&#39;$employeeName&#39;,N&#39;$department&#39;,  
                    getdate(), getdate())"; 
    }else{//如果seq已存在则更新已有记录  
        $query = "UPDATE employees SET employeeID=&#39;$employeeID&#39;,  
                employeeName=&#39;$employeeName&#39;,department=&#39;$department&#39;, 
                updateTime=getdate()   
            WHERE seq=&#39;$seq&#39;"; 
    } 
     
//  file_put_contents("E:/mylog.log", $query."\r\n",FILE_APPEND);//用于调试  
    <SPAN style="COLOR: #ff0000">$query = iconv("utf-8", "gbk//ignore", $query);//为了解决中文乱码问题</SPAN> 
    if($result = sqlsrv_query($conn, $query)){ 
        echo true; 
    }else{ 
        echo false; 
    } 
//  echo $query;  
?> 

<?php
 /**
  * 如果员工编号在MySql中不存在则在MySql中插入员工记录
  * 如果该员工编号已经存在则进行更新操作
  */
 //如果用JSON格式则要使用text/html，不能使用text/xml
 header("Content-Type: text/html;charset=utf-8");
//  header("Content-Type: text/html;charset=GBK");
 //告诉浏览器不要缓存数据
 header("Cache-Control: no-cache");
 
 require &#39;../conn.php&#39;;
 $seq = $_POST["seq"];
 $employeeID = $_POST["employeeID"];
 $employeeName = $_POST["employeeName"];
 $department = $_POST["department"];

 if(!isset($seq) || $seq == ""){//seq不存在则插入新记录
  $query = "INSERT INTO employees (employeeID, employeeName, department,
     createTime, updateTime)
    VALUES (N&#39;$employeeID&#39;,N&#39;$employeeName&#39;,N&#39;$department&#39;,
     getdate(), getdate())";
 }else{//如果seq已存在则更新已有记录
  $query = "UPDATE employees SET employeeID=&#39;$employeeID&#39;,
    employeeName=&#39;$employeeName&#39;,department=&#39;$department&#39;,
    updateTime=getdate() 
   WHERE seq=&#39;$seq&#39;";
 }
 
//  file_put_contents("E:/mylog.log", $query."\r\n",FILE_APPEND);//用于调试
 $query = iconv("utf-8", "gbk//ignore", $query);//为了解决中文乱码问题
 if($result = sqlsrv_query($conn, $query)){
  echo true;
 }else{
  echo false;
 }
//  echo $query;
?>

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PHP reads mssql2008, json data is garbled in Chinese_PHP tutorial