Java 使用php将特殊字符从mysqli数据库传递到android应用程序

我在服务器上有一个mysqli表，配置如下所示。文本数据包含一些特殊字符。我使用以下php文件将其传递给我的android应用程序。问题是所有特殊字符在应用程序中都显示为问号。我不确定是否需要指定在php文件中传递unicode字符，如果需要，如何传递。这不是字体问题，因为任何硬编码到应用程序中的特殊字符都会按预期显示

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您的数据的字符集是什么？当我的数据有字符集cp1250时，我必须将字符串传输到utf8。更改PHP脚本

...
while ($row = mysqli_fetch_array($result)) {
    // temp user array
    $gamelist = array();
    $gamelist["id"] = $row["id"];
    //$gamelist["zadanie"] = $row["zadanie"];
    $gamelist["zadanie"] = iconv("CP1250", "UTF-8", $row["zadanie"]);
    $gamelist["odp_a"] = $row["odp_a"];
    $gamelist["odp_b"] = $row["odp_b"];
    $gamelist["odp_c"] = $row["odp_c"];
    $gamelist["odp_d"] = $row["odp_d"];
    $gamelist["comment"] = $row["comment"];
    $gamelist["correctanswer"] = $row["correctanswer"];




    // push single gamelist into final response array
    array_push($response["gamelist"], $gamelist);
}
...

同样，在我将数据从应用程序保存到Mysql之前，我必须进行传输

...
$zadanie = iconv("UTF-8", "CP1250", $_POST['zadanie']);
...

---

你的数据是什么？当我的数据有字符集cp1250时，我必须将字符串传输到utf8。更改PHP脚本

...
while ($row = mysqli_fetch_array($result)) {
    // temp user array
    $gamelist = array();
    $gamelist["id"] = $row["id"];
    //$gamelist["zadanie"] = $row["zadanie"];
    $gamelist["zadanie"] = iconv("CP1250", "UTF-8", $row["zadanie"]);
    $gamelist["odp_a"] = $row["odp_a"];
    $gamelist["odp_b"] = $row["odp_b"];
    $gamelist["odp_c"] = $row["odp_c"];
    $gamelist["odp_d"] = $row["odp_d"];
    $gamelist["comment"] = $row["comment"];
    $gamelist["correctanswer"] = $row["correctanswer"];




    // push single gamelist into final response array
    array_push($response["gamelist"], $gamelist);
}
...

同样，在我将数据从应用程序保存到Mysql之前，我必须进行传输

...
$zadanie = iconv("UTF-8", "CP1250", $_POST['zadanie']);
...