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我找到了一个 PHP 脚本，我试图用它来从博客线程中获取评论，它似乎都在那里，但我不知道为什么它不能正常工作。我不断收到此错误

Warning: Invalid argument supplied for foreach() in /Applications/MAMP/htdocs/AP-Get.php on line 33

这是脚本：

<?php
    ini_set('display_errors', 'on');
    $key="KEY-OMITTED";
    $forum="amandapalmer";
    $thread = '1009158814';
    $limit = '100';

$endpoint = 'http://disqus.com/api/3.0/threads/listPosts.json?api_key='.urlencode($key).'&forum='.$forum.'&limit='.$limit.'&cursor='.$cursor;

$j=0;
listcomments($endpoint,$cursor,$j);

function listcomments($endpoint,$cursor,$j) {

// Standard CURL
$session = curl_init($endpoint.$cursor);
curl_setopt($session, CURLOPT_RETURNTRANSFER, 1);
$data = curl_exec($session);
curl_close($session);

// Decode JSON data
$results = json_decode($data);
if ($results === NULL) die('Error parsing json');

// Comment response
$comments = $results->response;

// Cursor for pagination
$cursor = $results->cursor;

$i=0;
foreach ($comments as $comment) {
    $name = $comment->author->name;
    $comment = $comment->message;
    $created = $comment->createdAt;
    // Get more data...

    echo "<p>".$name." wrote:<br/>";
    echo $comment."<br/>";
    echo $created."</p>";
    $i++;
}

// cursor through until today
if ($i == 100) {
    $cursor = $cursor->next;
    $i = 0;
    listcomments($endpoint,$cursor);
    /* uncomment to only run $j number of iterations
    $j++;
    if ($j < 10) {
        listcomments($endpoint,$cursor,$j);
    }*/
}
}

?>

我想这可能是我的 API 密钥，但我已经用其他更基本的 Disqus 脚本检查了几次，它在这些脚本上运行良好。

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1 回答 1

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主要问题是“threads/listPosts”API 端点要求您指定线程，因此出现了失败响应。我修复了脚本的其他一些潜在问题并使其正常工作（请参见下面的代码）。

请注意，此版本使用您的密钥。要使用您的公钥，请将“api_secret”更改为“api_key”。

<?php
    ini_set('display_errors', 'on');
    $key="API-SECRET-KEY";
    $forum="amandapalmer";
    $thread = '1009158814';
    $limit = '100';

    $endpoint = 'http://disqus.com/api/3.0/threads/listPosts.json?api_secret='.urlencode($key).'&forum='.$forum.'&limit='.$limit.'&thread='.$thread;

    $j=0;
    listcomments($endpoint,$cursor,$j);

    function listcomments($endpoint,$cursor,$j) {

    // Standard CURL
    $session = curl_init($endpoint.$cursor);
    curl_setopt($session, CURLOPT_RETURNTRANSFER, 1);
    $data = curl_exec($session);
    curl_close($session);

    // Decode JSON data
    $results = json_decode($data);
    if ($results === NULL) die('Error parsing json');

    // Comment response
    $comments = $results->response;

    // Cursor for pagination
    $cursor = '&cursor=' . $results->cursor->next;

    $i=0;
    foreach ($comments as $comment) {
        $name = $comment->author->name;
        $comment = $comment->message;
        $created = $comment->createdAt;
        // Get more data...

        echo "<p>".$name." wrote:<br/>";
        echo $comment."<br/>";
        echo $created."</p>";
        $i++;
    }

    // cursor through until today
    if ($i == 100) {
        $cursor = $cursor->next;
        $i = 0;
        listcomments($endpoint,$cursor,$j);
        /* uncomment to only run $j number of iterations
        $j++;
        if ($j < 10) {
            listcomments($endpoint,$cursor,$j);
        }*/
    }
}

?>
于 2013-05-03T01:52:49.127 回答