问Json解析错误

EN

<?php
function getCode($url)
{
    $ch=curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_USERAGENT, "MozillaXYZ/1.0");
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    $output = curl_exec($ch);
    curl_close($ch);
    return $output;
}
$html=getCode("http://api.tripadvisor.com/api/partner/1.0/location/258705/reviews");
$json = json_decode($html);
$cnt=0;
foreach ($json as $item)
{
    foreach($item as $row)
    {
        echo "Image Url:".$row->text."<br>";
        echo "ID:".$row->id."<br>";
        //username
        foreach($row->user as $row1)
        {
            echo $row1."<br>";

        }


    }
    echo "<br><br>";
}