将数组转换为UTF-8？PHP JSON

Question

我有PHP生成的多维数组和数据库中的数据,但我有像"čćšđž"这样的字符,当我尝试在json中输出它时他只返回null,我做了一些关于它的阅读,它说JSON仅适用于UTF-8.那么如何在UTF-8中转换这些数组呢？但是我仍然需要数组和？

这是我的脚本代码

     $sql_main = mysql_connect(DB_HOST, DB_UNM, DB_PSW);
    ($sql_main)? mysql_select_db(DB_NM) : mysql_error();

    $APP_URL_ACCESS = $_GET['app_access_key'];

    $sql_app = mysql_query("SELECT * FROM app_sys WHERE APP_OW_C='$APP_URL_ACCESS'") or die(mysql_error());

    if(mysql_num_rows($sql_app)==1){

        while($row = mysql_fetch_array($sql_app)){
        $APP_UA_ID          = $row['APP_UA_ID'];
        $APP_NM             = $row['APP_NM'];
        $APP_H_DMN          = $row['APP_H_DMN'];
        $APP_H              = $row['APP_H'];
        $APP_H_DB_UNM       = $row['APP_H_DB_UNM'];
        $APP_DB_NM          = $row['APP_DB_NM'];
        $APP_H_DB_PSW       = $row['APP_H_DB_PSW'];
        $APP_H_DB_SRV       = $row['APP_H_DB_SRV'];
        $APP_ACTIVE         = $row['APP_ACTIVE'];
        $APP_OW_C           = $row['APP_OW_C'];


    }
    $ROW_APP[] = array(
                        'APP_UA_ID' => $APP_UA_ID,
                        'APP_PERMISSION' => $APP_ACTIVE,
                        'APP_KEY' => $APP_OW_C);
    $APP_ARRAY[''] = $ROW_APP;



    ($APP_ACTIVE == '1')? $sql_connect_app = mysql_connect($APP_H_DB_SRV, $APP_H_DB_UNM, $APP_H_DB_PSW) && mysql_select_db($APP_DB_NM): $_MSG = "Application Is Not Active"; 

    $sql_news = mysql_query("SELECT * FROM news  ORDER BY id DESC LIMIT 10") or die(mysql_error());
    while($row = mysql_fetch_array($sql_news, MYSQL_ASSOC)){
            //$display_json['data'] = array(
                //'id' => $row['id'],
    //          'title' => $row['title'],
        //      'story' => $row['story'],
        //      'img' => $row['img'],
            //  'author' => $row['author'],
                //'datetime' => $row['datetime'],
                //'shorten_story' => substr($row['story'], 0, 150) . '...'); */

            $ROW_APP_DATA[] = $row; 
    //

}

$sql_news = mysql_query("SELECT * FROM actual  ORDER BY id DESC LIMIT 10") or die(mysql_error());
while($row = mysql_fetch_array($sql_news, MYSQL_ASSOC)){
        /*$display_json['data'] = array(
            'id' => $row['id'],
            'title' => $row['title'],
            'story' => $row['story'],
            'img' => $row['img'],
            'author' => $row['author'],
            'datetime' => $row['datetime'],
            'shorten_story' => substr($row['story'], 0, 150) . '...'); */
            $ROW_APP_THIRDPART[] = $row;    
    //

}

$JSON_ARRAY_APP['application'] = $ROW_APP;
$JSON_ARRAY_DATA_1['news'] = $ROW_APP_DATA;
$JSON_ARRAY_DATA_2['actual'] = $ROW_APP_THIRDPART;
$JSON_ARRAY_DATA['data'] = array_merge($JSON_ARRAY_DATA_1, $JSON_ARRAY_DATA_2);
$JSON_OUTPUT = array_merge($JSON_ARRAY_APP, $JSON_ARRAY_DATA);
echo json_encode($JSON_OUTPUT);

}else{
exit(); 
}

Answer 1

我发现iconv将字符集转换为UTF-8的最佳方法.您可以使用PHP array_walk_recursive来处理多维数组:

$array = array(); // This is your multidimensional array

array_walk_recursive($array, function(&$value, $key) {
    if (is_string($value)) {
        $value = iconv('windows-1252', 'utf-8', $value);
    }
});

您可以更改windows-1252为要转换的任何字符集.

Answer 2

试试这个功能:

function utf8_converter($array)
{
    array_walk_recursive($array, function(&$item, $key){
        if(!mb_detect_encoding($item, 'utf-8', true)){
            $item = utf8_encode($item);
        }
    });

    return $array;
}

Answer 3

尝试这个 PHP 函数，您只需传入您想要编码的数组即可。

function convertArrayKeysToUtf8(array $array) { 
$convertedArray = array(); 
foreach($array as $key => $value) { 
  if(!mb_check_encoding($key, 'UTF-8')) $key = utf8_encode($key); 
  if(is_array($value)) $value = $this->convertArrayKeysToUtf8($value); 

  $convertedArray[$key] = $value; 
} 
return $convertedArray; 
  } 

PS：查看 php.net 了解其他 utf-8 编码方法的想法，但这在过去对我有用。