我想使用新的 API v3 从我的 YouTube 频道获取订阅者数量。
- 我在这里为 youtube 创建了一个 Google API 应用程序：谷歌 API 控制台 https://code.google.com/apis/console
- 我有 APP 密钥和 YouTube 频道 ID
- 我使用“json_decode”来获取对象
<?php
$url_yt = "https://www.googleapis.com/youtube/v3/channels?part=statistics&id=CHANNELID&key=APIKEY";
$yt_array = file_get_contents($url_yt);
$ytcount = json_decode($yt_array, true);
$ytsubscribers = $ytcount['items'][0]['subscriberCount'];
echo $ytsubscribers;
?>
即使代码片段看起来没问题，我也会遇到一些错误。
Warning: file_get_contents() [function.file-get-contents]: SSL: Success in /ytsub2.php on line 4
Warning: file_get_contents() [function.file-get-contents]: Failed to enable crypto in /ytsub2.php on line 4
Warning: file_get_contents(https://www.googleapis.com/youtube/v3/channels?part=statistics&id=CHANNELID&key=APIKEY) [function.file-get-contents]: failed to open stream: operation failed in /ytsub2.php on line 4
我不知道如何修复这个错误。我的站点服务器似乎无法正确获取 JSON。
EDIT:
我尝试使用 cURL 但没有任何结果：
<?php
//function to get the remote data
function url_get_contents ($url) {
if (function_exists('curl_exec')){
$conn = curl_init($url);
curl_setopt($conn, CURLOPT_SSL_VERIFYPEER, true);
curl_setopt($conn, CURLOPT_FRESH_CONNECT, true);
curl_setopt($conn, CURLOPT_RETURNTRANSFER, 1);
$url_get_contents_data = (curl_exec($conn));
curl_close($conn);
}elseif(function_exists('file_get_contents')){
$url_get_contents_data = file_get_contents($url);
}elseif(function_exists('fopen') && function_exists('stream_get_contents')){
$handle = fopen ($url, "r");
$url_get_contents_data = stream_get_contents($handle);
}else{
$url_get_contents_data = false;
}
return $url_get_contents_data;
}
$url_yt = "https://www.googleapis.com/youtube/v3/channels?part=statistics&id=CHANNELID&key=APIKEY";
$yt_array = url_get_contents($url_yt);
$ytcount = json_decode($yt_array, true);
$ytsubscribers = $ytcount['items'][0]['subscriberCount'];
// echo the youtube follower count
echo $ytsubscribers;
?>
以下是 cURL 的正确工作代码：
# url_get_contents function by Andy Langton: http://andylangton.co.uk/
function url_get_contents($url,$useragent='cURL',$headers=false, $follow_redirects=false,$debug=false) {
# initialise the CURL library
$ch = curl_init();
# specify the URL to be retrieved
curl_setopt($ch, CURLOPT_URL,$url);
# we want to get the contents of the URL and store it in a variable
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
# specify the useragent: this is a required courtesy to site owners
curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
# ignore SSL errors
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
# return headers as requested
if ($headers==true){
curl_setopt($ch, CURLOPT_HEADER,1);
}
# only return headers
if ($headers=='headers only') {
curl_setopt($ch, CURLOPT_NOBODY ,1);
}
# follow redirects - note this is disabled by default in most PHP installs from 4.4.4 up
if ($follow_redirects==true) {
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
}
# if debugging, return an array with CURL's debug info and the URL contents
if ($debug==true) {
$result['contents']=curl_exec($ch);
$result['info']=curl_getinfo($ch);
}
# otherwise just return the contents as a variable
else $result=curl_exec($ch);
# free resources
curl_close($ch);
# send back the data
return $result;
}
$url_yt = "https://www.googleapis.com/youtube/v3/channels?part=statistics&id=YOUR_CHANNEL_ID&key=YOUR_API_KEY";
url_get_contents($url_yt);
$yt_array = url_get_contents($url_yt);
$ytcount = json_decode($yt_array, true);
$ytsubscribers = $ytcount['items'][0]['statistics']['subscriberCount'];
然后在要显示的位置调用变量 $ytsubscribers。
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