为什么我的 for 循环显示相同的项目两次？

Question

我正在尝试在 JSON 评论数组中显示每个项目。数组中有两条评论，但这段代码没有同时显示两条评论，而是两次显示相同的评论。

为什么会这样？

$response = curl_exec($curl);
$data = json_decode($response, true);

// Setup the Review for posting to the Mysql Database
// Loop through Reviews
for ($i=0; $i<count($data['reviews']); $i++) {
    $id = $data['reviews']['0']['id']; //  good
    $stars = $data['reviews']['0']['stars']; //good
    $title = $data['reviews']['0']['title'];
    $text = $data['reviews']['0']['text'];
    $createdAt = $data['reviews']['0']['createdAt'];
    $companyReply = $data['reviews']['0']['companyReply']['text'];
    $companyReplyDate = $data['reviews']['0']['companyReply']['createdAt'];

    // Do Mysql insert for each row

    // show this
    echo "id: " . $id . "</br>";
    echo "stars: " . $stars . "</br>";
    echo "title: " . $title . "</br>";
    echo "text: " . $text . "</br>";
    echo "Created: " . $createdAt . "</br>";
    echo "Reply: " . $companyReply . "</br>";
    echo "Reply Date: " . $companyReplyDate . "</br> </br>";
}

curl_close($curl);

Answer 1

这是因为您实际上并没有使用循环增量变量来获取不同的数组键。您只是重复选择 ['0'] 索引。相反，使用$i 作为数组键，如下所示：

for ($i=0; $i<count($data['reviews']); $i++) {
    $id = $data['reviews'][$i]['id']; //  good
    $stars = $data['reviews'][$i]['stars']; //good
    $title = $data['reviews'][$i]['title'];
    $text = $data['reviews'][$i]['text'];
    $createdAt = $data['reviews'][$i]['createdAt'];
    $companyReply = $data['reviews'][$i]['companyReply']['text'];
    $companyReplyDate = $data['reviews'][$i]['companyReply']['createdAt'];
    // ... etc.