循环查询 API 真的很慢

Question

我听说可以通过仅使用一个查询而不是对每个循环进行查询来循环 JSON 数据。任何想法如何从这段代码中做到这一点？ 我真的需要这样做，因为成功加载页面最多需要 3 分钟..

* PHP *

<?php foreach ($return as $user) {
    $link = "http://api.steampowered.com/ISteamUser/GetPlayerSummaries/v0002/?key=$devkey&steamids=$user->SteamID";
    $json = file_get_contents($link);
    $decoding = json_decode($json);
    $avatar = $decoding->response->players[0]->avatar;
?>
<td id="addme"><img src="<?php echo $avatar; ?>" width="32" height="32"></td>
<td><?php echo $user->DisplayName; ?></td>
<td><?php echo $user->SteamID; ?>  <a href="http://steamcommunity.com/profiles/<?php echo $user->SteamID; ?>/" target="_blank"><span class="glyphicon glyphicon-new-window" id="gotosteamprofile"></span></a></td>
<td><?php
         $ipredc = substr($user->Address, 0, -6);
         echo $ipredc; ?></td>
<td><?php 
         $toconver = $user->ConnectedSeconds;
         $hours = floor($toconver / 3600);
         $mins = floor($toconver / 60 % 60);
         $secs = floor($toconver % 60);
         $timeFormat = sprintf('%02d:%02d:%02d', $hours, $mins, $secs);
         echo $timeFormat;
      ?></td>
</tr>

<?php
}
?>

Answer 1

防止多次调用 API 的唯一方法是找到同义数据点。幸运的是，Steam 提供了这一点。

根据Steam API on GetPlayerSummaries，您最多可以同时返回100名玩家的数据。因此，您应该只需要一次进行此调用（假设您只获取有关少数玩家的数据）。

在您的foreach ($return as $user) 中，您当前正在将$user 传递给查询本身：

&steamids=$user->SteamID

这充当GET参数，并调用多个url：

/GetPlayerSummaries/v0002/?key=$devkey&steamids=12345678
/GetPlayerSummaries/v0002/?key=$devkey&steamids=23456789

这显然非常昂贵，但幸运的是，您可以使用 Comma-delimited list of 64 bit Steam IDs to return profile information for 一次传递所有 ID。因此，您应该将此列表创建为一个变量以一次性发送所有内容：

$combined_ids = '';
foreach ($return as $user) {
  $combined_ids.= $user->SteamID . ',';
}
// $combined_ids = '1,2,3,4,5';

然后，您可以将此变量传递到查询中，在循环之外：

$link = "http://api.steampowered.com/ISteamUser/GetPlayerSummaries/v0002/?key=$devkey&steamids=$combined_ids";
$json = file_get_contents($link);
$decoding = json_decode($json);

最后，在单次调用 API 之后，您将使用预定义的 $decoding 对每个用户的结果进行 secondary 循环变量。

<?php foreach ($return as $user) {

    $avatar = $decoding->response->players[0]->avatar;
    ?>
    <td id="addme"><img src="<?php echo $avatar; ?>" width="32" height="32"></td>
    <td><?php echo $user->DisplayName; ?></td>
    <td><?php echo $user->SteamID; ?>  <a href="http://steamcommunity.com/profiles/<?php echo $user->SteamID; ?>/" target="_blank"><span class="glyphicon glyphicon-new-window" id="gotosteamprofile"></span></a></td>
    <td><?php
    $ipredc = substr($user->Address, 0, -6);
    echo $ipredc; ?></td>
    <td><?php 
    $toconver = $user->ConnectedSeconds;
    $hours = floor($toconver / 3600);
    $mins = floor($toconver / 60 % 60);
    $secs = floor($toconver % 60);
    $timeFormat = sprintf('%02d:%02d:%02d', $hours, $mins, $secs);
    echo $timeFormat;
    ?></td>
    </tr>

<?php
}
?>

请注意，您可能需要根据一次处理多个用户而不是一次处理一个用户的 API 的返回来稍微调整结果。

希望这会有所帮助！ :)

Answer 2

根据文档，您可以传递逗号分隔的最多 100 个 id 的字符串。

返回个人资料信息的 64 位 Steam ID 的逗号分隔列表。最多可申请 100 个 Steam ID enter link description here

所以根据我对评论的回答，你可以这样做：

$allRows = []; // initialize all rows array

// organize the database result into an array as such
$allSteamUsers = [
    '76561197989628222'=>['Address'=>'Some Address 1','DisplayName'=>'Some Name'], // => some data
    '76561197989628233'=>['Address'=>'Some Address 2','DisplayName'=>'Some Name'], // => some data
    '76561197989628444'=>['Address'=>'Some Address 3','DisplayName'=>'Some Name'], // => some data
    // .......
    '76561197989628447'=>['Address'=>'Some Address 298','DisplayName'=>'Some Name'], // => some data
    '76561197989628448'=>['Address'=>'Some Address 299','DisplayName'=>'Some Name'], // => some data
    '76561197989628449'=>['Address'=>'Some Address 300','DisplayName'=>'Some Name'], // => some data
];

// chunk the user array into parts of 100 and preserve keys
$steamUsersChunks = array_chunk($allSteamUsers, 100, true);

// loop parts
foreach($steamUsersChunks as $steamUsers){

    // build the comma separated id string for the query
    $steam_ids_str = implode(',',array_keys($steamUsers));

    $url = "http://api.steampowered.com/ISteamUser/GetPlayerSummaries/v0002/?key=$devkey&steamids=$steam_ids_str";
    $items = json_decode(file_get_contents($url),true); // get JSON and decode with associative array flag set to true
    $players = $items['response']['players']; // get the players array

    $rows = [];

    // loop players array
    foreach($players as $item) {

        // set your variables
        $steamId = $item['steamid'];
        $avatar = $item['avatar'];
        $user_displayName = $steamUsers[$steamId]['DisplayName'];
        $user_Address = $steamUsers[$steamId]['Address'];
        $ipredc = substr($user_Address, 0, -6);

        // build row and add to rows container of this players loop
        $rows[] = '<tr>
        <td id="addme"><img src="'.$avatar.'" width="32" height="32"></td>
        <td>'.$user_displayName.'</td>
        <td>'.$steamId.'  <a href="http://steamcommunity.com/profiles/'.$steamId.'/" target="_blank"><span class="glyphicon glyphicon-new-window" id="gotosteamprofile"></span></a></td>
        <td>'.$ipredc.'</td>
        <td></td>
        </tr>';

    }

    // attach to the general table
    $allRows[] = implode("\n",$rows);

}

// display rows where ever needed
echo implode("\n",$allRows);