调用Facebook API以回响计数不起作用 [英] Call Facebook API to echo like count doesn't work

问题描述

我想在我的网站上显示我的Facebook页面的点赞次数.我使用的以前的方法已经几天没用了.

I'd like to display the number of likes for my Facebook page on my website. The previous method I used isn't working anymore since a couple of days.

当我像这样调用Facebook graph API时: https://api .facebook.com/method/links.getStats?urls = http://www.facebook.com/549585444& format = json

When I call the Facebook graph API like this: https://api.facebook.com/method/links.getStats?urls=http://www.facebook.com/549585444&format=json

它给出了以下输出(虚构示例):

It gives me the following output (fictional example):

[{"url":"http:\/\/www.facebook.com\/549585444","normalized_url":"http:\/\/www.facebook.com\/549585444","share_count":0,"like_count":122,"comment_count":0,"total_count":122,"click_count":0,"comments_fbid":null,"commentsbox_count":0}]

现在我想回声类似的数字:

Now I like to echo the like count:

<?php
    $fb_page = "549585444"; 
    $url = "https://api.facebook.com/method/links.getStats?urls=http://www.facebook.com/".$fb_page."&format=json";
    $curl = curl_init($url);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);   
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
    $json_returned = curl_exec($curl);  
    curl_close($curl);
    $json_returned = json_decode($json_returned, true);
    echo $json_returned['like_count'];
?>

但是没有出现数字.知道为什么吗?

But the number doesn't appear. Any idea why?

推荐答案

正如您在JSON输出中所看到的，答案被包装在一个数组中:

As you can see in the JSON output, the answer is wrapped in an array:

array(1) {
  [0]=>
  array(9) {
    ["url"]=>
    string(33) "http://www.facebook.com/549585444"
    ["normalized_url"]=>
    string(33) "http://www.facebook.com/549585444"
    ["share_count"]=>
    int(0)
    ["like_count"]=>
    int(0)
    ["comment_count"]=>
    int(0)
    ["total_count"]=>
    int(0)
    ["click_count"]=>
    int(0)
    ["comments_fbid"]=>
    NULL
    ["commentsbox_count"]=>
    int(0)
  }
}

要获取数字输出，您必须通过更改以下行来获取数组中的第一项:

To get the number output, you'll have to get the first item in the array by changing this row:

echo $json_returned['like_count'];

对此:

echo $json_returned[0]['like_count'];

这篇关于调用Facebook API以回响计数不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！