Question

我最近对PHP感到好奇，而且我正在研究测试主题。我希望通过在线游戏获得公民人数并按军衔命名。

以下是API的链接：https://www.erevollution.com/en/api/citizenship/1

这是我到目前为止的代码。

<form action="index.php" method="post">
    <input type="text" name="id"><br>
    <input type="submit">
</form>
<?php   
$okey= $_POST["id"];;
$jsonurl="https://www.erevollution.com/en/api/citizenship/".$okey;
$json = file_get_contents($jsonurl,0,null,null);  
$json_output = json_decode($json); 
echo "Players of albania are: <br>";  

foreach ($json_output as $trend)  
{   
    $id = $trend->ID;
    echo " Name : {$trend->Name}\n";    
    echo '<br>';
}

Answer 1

当你json_decode API响应时，使用true作为第二个参数来获取关联数组而不是stdClass对象。

$json_output = json_decode($json, true);

然后你可以使用usort按MilitaryRank排序：

usort($json_output, function($a, $b) {
    if ($a['MilitaryRank'] < $b['MilitaryRank']) return -1;
    if ($a['MilitaryRank'] > $b['MilitaryRank']) return 1;
    return 0;
});

如果您想要降序而不是升序，只需反转两个if条件。

Answer 2

$json_decoded = json_decode($json,true);

$allDatas = array();
foreach ($json_decoded as $user) {
    $allDatas[$user['MilitaryRank']][] = $user;
}
sort($allDatas);
print_r($allDatas);

所以你可以像这样做一个foreach：

foreach ($allDatas as $MilitaryRank => $users) {
    # code...
}

Answer 3

如果我做对了，这是我的解决方案，否则，纠正我！

<?php
$jsonurl="https://www.erevollution.com/en/api/citizenship/1";
$json = file_get_contents($jsonurl,0,null,null);  
$json_output = json_decode($json, true);
echo '<pre>';
echo "Players of albania are: <br>";
$military_rank = [];  
foreach ($json_output as $trend)  
{   
    $military_rank[$trend['MilitaryRank']][] = $trend;
}
ksort($military_rank);
foreach ($military_rank as $key => $rank)
{
    echo '<br><br>Rank ' . $key . '<br>';
    foreach ($rank as $player)
    {
        echo 'Name: ' . $player['Name'] . '<br>';
    }
}

Answer 4

有an example on the usort docs用于排序多维数组。基本上只需替换您想要的数组索引'MilitaryRank'

我还对HTML进行了更多的宣传，使其更具可读性。

<form method="post">
    <input type="text" name="id"><br>
    <input type="submit">
</form>
<?php   
$okey= $_POST["id"];;
$jsonurl="https://www.erevollution.com/en/api/citizenship/".$okey;
$json = file_get_contents($jsonurl,0,null,null);  
$json_output = json_decode($json, true); 

// print_r($json_output);

function cmp($a, $b)
{
    if ($a['MilitaryRank'] == $b['MilitaryRank']) {
        return 0;
    }
    return ($a['MilitaryRank'] < $b['MilitaryRank']) ? -1 : 1;
}

usort($json_output, "cmp");

echo "<h1>Players of albania are: </h1>";  

foreach ($json_output as $trend)  
{
    $id = $trend['ID'];
    echo " Name : $trend[Name]\n<br>";
    echo " MRank : $trend[MilitaryRank]\n<br><hr/>";
}

用php订购json api

4 个答案: