从PHP生成json文件故障特殊字符

Question

我有一个特殊问题。我正在尝试生成一个json文件，用作Unity3D中的翻译文件。

我这样做：

$lang = $_GET["lang"];

header('Content-disposition: attachment; filename=da.json');
header('Content-type: text/plain');

$jsonString = "{\n";

$result = mysqli_query($con,"SELECT * FROM ReloadedSnippets ORDER BY id");
while ($row = mysqli_fetch_assoc($result)){

    $snippetId = $row['id'];

    $result1 = mysqli_query($con,"SELECT * FROM ReloadedTranslations WHERE fk_snipId=$snippetId AND lang='$lang'");
    $row1 = mysqli_fetch_assoc($result1);

    $string1 = $row1["translation"];
    $string1 = mysqli_real_escape_string($con,$string1);
    $jsonString .= "   ";
    $jsonString .= '"'.$row['snippet'].'": "'.$string1.'",';
    $jsonString .= "\n";

}

$jsonString .= '}';

$jsonString = mb_convert_encoding($jsonString,'utf-8','iso-8859-1');

echo $jsonString;

它实际上正确地完成了工作，但是...当在sublimeText中打开文件时，我看到一些奇怪的插入，就在丹麦语“æøå”之类的特殊字符之前。

任何人都可以解释这是什么以及我是否应该关注？最重要的是......我如何解决这个问题。

感谢任何帮助： - ）

Answer 1

虽然您当然可以手动生成JSON，但我建议使用内置的json_encode php函数（请参阅docs）。该函数将处理必须像引号一样进行转义的最终字符。

不是直接生成json字符串而是生成对象表示，然后将其转换为字符串：

$jsonData = [];
$result = mysqli_query($con, "SELECT * FROM ReloadedSnippets ORDER BY id");
while ($row = mysqli_fetch_assoc($result)) {
    $snippetId = $row['id'];

    $result1 = mysqli_query($con,"SELECT * FROM ReloadedTranslations WHERE fk_snipId=$snippetId AND lang='$lang'");
    $row1 = mysqli_fetch_assoc($result1);

    $string1 = $row1["translation"];
    $string1 = mysqli_real_escape_string($con,$string1);
    $jsonData[$row['snippet']] = $string1;
}

$jsonString = json_encode($jsonData);
echo $jsonString;

Answer 2

尝试改变：

$jsonString = mb_convert_encoding($jsonString,'UTF-8',mb_detect_encoding($jsonString));

并添加标题

header('Content-type: text/plain; charset=utf-8');