Question

我从MySQL获取数据并使用php以json格式显示，但我的数据是波斯语，它显示?字符而不是原始数据如下所示。

{“allnews”：[{“id”：“35”，“Onvan”：“???? ????? ???????????????????? ?? ????? “}，{” ID “：” 36" ， “Onvan”：“____ ???? ？ ??????????? ?????“}，{”id“：”37“，”Onvan“：”??????? ???? ??? ??? ???? ???? ?? ??? ?? ???? ???? ??????? ??? ?????? ???????? ?? “}，{”id“：”38“，”Onvan“：”????? ????????? ???? ??? ?? ?? ??????? ???????? “}，{” id为 “：” 39" ， “Onvan”：“??? ???? ??? ????“}]}

这是我的代码。请你查看哪里出错了。

<?php
$hostname='localhost';
$username='xxxxxxxxx';
$password='xxxxxxxxx';
$response = array();
try {

    $dbh=new PDO("mysql:host=$hostname;dbname=dbtest",$username  ,$password);

    $response["allnews"] = array();

    /*** QUERY ****/
    $sql='SELECT * FROM test';

    $stmt=$dbh->query($sql);

    $objs = $stmt->fetchAll(PDO::FETCH_OBJ);

    foreach($objs as $object) {
        $news = array();        
        $news["id"]=$object->id;
        $news["Onvan"]=$object->title;

        array_push($response["allnews"], $news);
    }

    echo json_encode($response);

    /*** close connection ***/
    $dbh=null;

}catch(PDOException $e) {
 echo $e->getMessage();
}
?>

Answer 1

使用

header("Content-type: application/json; charset=utf-8");

就在

之前

echo json_encode($response);

它也可能是Mysql提取错误

所以替换行

$dbh=new PDO("mysql:host=$hostname;dbname=dbtest",$username  ,$password);

带

$dbh=new PDO("mysql:host=$hostname;dbname=dbtest;charset=utf8",$username  ,$password);

Answer 2

最简单的解决方案

-(void)applicationDidEnterBackground {
  [self.locationManager stopUpdatingLocation];

  UIApplication* app = [UIApplication sharedApplication];

  bgTask = [app beginBackgroundTaskWithExpirationHandler:^{
    [app endBackgroundTask:bgTask];
    bgTask = UIBackgroundTaskInvalid;
  }];

  self.timer = [NSTimer scheduledTimerWithTimeInterval:intervalBackgroundUpdate
                                                target:self.locationManager
                                              selector:@selector(startUpdatingLocation)
                                              userInfo:nil
                                               repeats:YES];
}

将charset添加到上面一行，如（mysql：charset = utf8mb4;）

$dbh=new PDO("mysql:host=$hostname;dbname=dbtest",$username  ,$password);

Answer 3

您可以使用utf8_encode（String）

foreach($objs as $object) {
        $news = array();        
        $news["id"]=utf8_encode( $object->id);
        $news["Onvan"]=utf8_encode( $object->title);

        array_push($response["allnews"], $news);
    }

如何在PHP中使用UTF-8：json_encode

3 个答案: