Php 从lastfmapi返回json

因此，我试图创建一个jquery/ajax自动完成表单，它使用last.fm api自动完成用户键入的歌曲标题，我遇到的问题是，我似乎无法以正确的json格式返回最后的fm数据。这是我的jquery插件（）希望返回的格式：

{
    "suggestions": [
        { "value": "United Arab Emirates", "data": "AE" },
        { "value": "United Kingdom",       "data": "UK" },
        { "value": "United States",        "data": "US" }
    ]
}

下面是我在php脚本中所做的基本操作，它将json返回给autocomplete插件：

                $titleName = "what's my age";
                $limit = 1;
                $results = Track::search($titleName, $limit);
                print_array($results);
                echo "<ul>";
                while ($title = $results->current()) {
                    echo $limit;
                    echo "<li><div>";
                    echo "Artist: " . $title->getArtist() . "<br>";
                    echo "Album: " . $title->getAlbum() . "<br>";
                    echo "Duration: " . $title->getDuration() . "<br>";
                    echo "getWiki: " . $title->getWiki() . "<br>";
                    echo "name: " . $title->getName() . "<br>";
                    echo "</div></li>";
                    $jsonArray['suggestions'] = array('Name'.$limit => $title->getName(), 'Artist'.$limit => $title->getArtist());
                    $limit++;
                    $title = $results->next();
                }
                echo "</ul>";
                print_array($jsonArray);
                echo json_encode($jsonArray);

这就是返回的内容（通过回波测试）：

因此，我知道代码工作正常，sdk自动完成等也正常。我还知道，每次循环通过时，我都会删除while循环中的数组，我还没有解决这个问题，但撇开这个问题不谈，json没有以请求的格式返回，我似乎找不到正确的方法来构造数组，以获得正确的格式，有什么想法吗

$suggestionsArr['suggestions'] = [];

foreach (range(1,3) as $key => $value) {
    array_push($suggestionsArr['suggestions'], ['name' => 'Song1', 'artist' => 'Artist1']);
}

echo json_encode($suggestionsArr);

1
Artist: Blink 1-82
Album: 
Duration: 0
getWiki: 
name: What's My Age Again?
2
Artist: Dj Tech1
Album: 
Duration: 0
getWiki: 
name: Blink vs. Jay-Z - what's my age again

$suggestionsArr['suggestions'] = [];

foreach (range(1,3) as $key => $value) {
    array_push($suggestionsArr['suggestions'], ['name' => 'Song1', 'artist' => 'Artist1']);
}

echo json_encode($suggestionsArr);