Question

我有一些调试C ++但没有使用php的经验。我有一个用于从网站下载文件的脚本。但是现在我收到以下错误，文件永远不会下载：

Notice: Undefined index: set in /Users/duboisford/Desktop/8tracks-Downloader/show.php Line 125:

Notice: Undefined index: set in /Users/duboisford/Desktop/8tracks-Downloader/show.php Line 109:

Notice: Undefined index: set in /Users/duboisford/Desktop/8tracks-Downloader/show.php Line 111:

第109行：

$song=$obj['set']['track']['track_file_stream_url']; ### FIX: changed 'url' to 'track_file_stream_url'

第111行：

echo '<tr><td><a href="'.$song.'">'.$obj['set']['track']['name'].'</a><br/>'.$obj['set']['track']['performer'].'</td></tr>';

第125行：

if($obj['set']['at_end'])

看起来问题是变量＆＃39;设置＆＃39;。但是，我没有看到文件中声明的变量。它从哪里得到这个变量？这是整个循环。

//RECURSIVELY PLAY/DOWNLOAD SONGS
$at_end=false;
while(!$at_end)
{
    $song=$obj['set']['track']['track_file_stream_url']; ### FIX: changed 'url' to 'track_file_stream_url'

    echo '<tr><td><a href="'.$song.'">'.$obj['set']['track']['name'].'</a><br/>'.$obj['set']['track']['performer'].'</td></tr>';

    //GET NEXT SONG
    $playurl= 'http://8tracks.com/sets/'.$token.'/next?mix_id='.$playlistid.'&format=jsonh&api_key=' . $api_key;

    $songcurl = curl_init($playurl);
    curl_setopt($songcurl, CURLOPT_URL,$playurl);
    curl_setopt($songcurl, CURLOPT_RETURNTRANSFER, true);
    $songdata = curl_exec($songcurl);
    curl_close($songcurl);

    $obj = json_decode($songdata,true);

    //CHECK IF AT END OF PLAYLIST
    if ($obj['set']['at_end'])
        $at_end= true;
}

php调试;如何设置变量？

0 个答案: