ช่วยดูเกี่ยวกับ json_decode ให้หน่อยครับ พอนำมาเเปลงเป็น array กลับเเสดงข้อมูลไม่ถูกต้อง

<?php
$curl = curl_init();

curl_setopt_array($curl, array(
    CURLOPT_URL => "https://coronavirus-monitor.p.rapidapi.com/coronavirus/worldstat.php",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_FOLLOWLOCATION => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "GET",
    CURLOPT_HTTPHEADER => array(
        "x-rapidapi-host: coronavirus-monitor.p.rapidapi.com",
        "x-rapidapi-key: 2c0355e97emsh0da41a8dca40badp1fe9fdjsnf2510cc296b0"
    ),
));

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
    echo "cURL Error #:" . $err;
} else {
    echo $response;
}

$html = json_decode($response,true);

?>


<div class="container">
    <div class="row">

        <div class="col-md-3">
            <ul class="social-icons">
                <?php
                foreach ($html AS $k => $v) {
                    echo $v['total_cases'];
                }
                ?>

            </ul>	
        </div>	
    </div>
</div>

Array ( [total_cases] => 186,670 [total_deaths] => 7,468 [total_recovered] => 80,338 
[new_cases] => 4,230 [new_deaths] => 321 [statistic_taken_at] => 2020-03-17 11:40:03 )

<?php
$curl = curl_init();
 
curl_setopt_array($curl, array(
    CURLOPT_URL => "https://coronavirus-monitor.p.rapidapi.com/coronavirus/worldstat.php",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_FOLLOWLOCATION => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "GET",
    CURLOPT_HTTPHEADER => array(
        "x-rapidapi-host: coronavirus-monitor.p.rapidapi.com",
        "x-rapidapi-key: 2c0355e97emsh0da41a8dca40badp1fe9fdjsnf2510cc296b0"
    ),
));
 
$response = curl_exec($curl);
$err = curl_error($curl);
 
curl_close($curl);
 
if ($err) {
    echo "cURL Error #:" . $err;
} else {
    echo $response;
}
 
$html = json_decode($response,true);
echo "<pre>";
 print_r($html); // ดูโครงสร้าง array
 echo "</pre>";
?>
 
 
<div class="container">
    <div class="row">
 
        <div class="col-md-3">
            <ul class="social-icons">
                <?php
				// วนลูปแสดงข้อมูล array แสดง key และ value
                foreach ($html as $k => $v) {
					echo $k."  -  ".trim($v)."<br>";
                }
                ?>
 
            </ul> 
        </div>    
    </div>
</div>

{"total_cases":"188,383","total_deaths":"7,499","total_recovered":"80,848","new_cases":"5,940","new_deaths":"352","statistic_taken_at":"2020-03-17 13:34:04"}

Array
(
    [total_cases] => 188,383
    [total_deaths] => 7,499
    [total_recovered] => 80,848
    [new_cases] => 5,940
    [new_deaths] => 352
    [statistic_taken_at] => 2020-03-17 13:34:04
)

echo $html['total_cases']; // มีค่าเท่ากับ 188,383

[{"total_cases":"188,383","total_deaths":"7,499","total_recovered":"80,848","new_cases":"5,940","new_deaths":"352","statistic_taken_at":"2020-03-17 13:34:04"},
{"total_cases":"188,383","total_deaths":"7,499","total_recovered":"80,848","new_cases":"5,940","new_deaths":"352","statistic_taken_at":"2020-03-17 13:34:04"}]

Array
(
    [0] => Array
        (
            [total_cases] => 188,383
            [total_deaths] => 7,499
            [total_recovered] => 80,848
            [new_cases] => 5,940
            [new_deaths] => 352
            [statistic_taken_at] => 2020-03-17 13:34:04
        )

    [1] => Array
        (
            [total_cases] => 188,383
            [total_deaths] => 7,499
            [total_recovered] => 80,848
            [new_cases] => 5,940
            [new_deaths] => 352
            [statistic_taken_at] => 2020-03-17 13:34:04
        )

)