首先，需要在facebook創(chuàng)建一個APP，創(chuàng)建方法見https://developers.facebook.com/，APP有一項(xiàng)是填寫Domain的，這里填寫你website的Domain。（APP是綁定domain的，不能亂填）
然后就可以使用facebook comments plugins。

使用facebook comments plugins，可以在頁面中插入facebook comments。
生成code方法：https://developers.facebook.com/docs/plugins/comments

例如：有一個頁面是http://www.example.com/ ，在這個頁面中插入以下代碼便可以使用comments plugings。

<!-- include facebook js sdk --> 
<script id="facebook-jssdk" src="http://connect.facebook.net/en_GB/all.js#xfbml=1&appId=這里填寫APPID"></script> 
 
<!-- comments plugins --> 
<fb:comments colorscheme="light" numposts="4" height="360px;" width="614px"  fb-xfbml-state="rendered" class="fb_iframe_widget"></fb:comments>

在頁面上顯示如下

201618151749286.jpg (626×359)

讀取頁面的分享總數(shù)與評論總數(shù)

https://graph.facebook.com/?ids={YOUR_URL}

{YOUR_URL} 需要 urlencode
例如：https://graph.facebook.com/?ids=http%3A%2F%2Fwww.example.com%2F
返回：

{ 
  "http://www.example.com/": { 
   "id": "http://www.example.com/", 
   "shares": 399517, 
   "comments": 392 
  } 
}

代碼如下：

<?php 
$url = 'http://www.example.com/'; 
$api = 'https://graph.facebook.com/?ids='; 
 
$result = json_decode(file_get_contents($api.urlencode($url)), true); 
 
print_r($result); 
?>

讀取頁面評論列表

https://graph.facebook.com/comments/?ids={YOUR_URL}

{YOUR_URL} 需要 urlencode
例如：https://graph.facebook.com/comments/?ids=http%3A%2F%2Fwww.example.com%2F
返回：

{ 
  "http://www.example.com/": { 
   "comments": { 
     "data": [ 
      { 
        "id": "395320319544_27462154", 
        "from": { 
         "id": "100000223906701", 
         "name": "Thu\u1eadn Phan Thanh" 
        }, 
        "message": "hello moto", 
        "can_remove": false, 
        "created_time": "2013-10-07T10:01:40+0000", 
        "like_count": 1, 
        "user_likes": false 
      }, 
      { 
        "id": "395320319544_27877980", 
        "from": { 
         "id": "100001638736612", 
         "name": "L\u00e3 Minh" 
        }, 
        "message": "hi you", 
        "can_remove": false, 
        "created_time": "2013-11-13T02:57:01+0000", 
        "like_count": 4, 
        "user_likes": false 
      }, 
      { 
        "id": "395320319544_27879381", 
        "from": { 
         "id": "100004229015145", 
         "name": "Th\u00f9y Dung" 
        }, 
        "message": "Mg \u1ee7ng h\u1ed9 t\u1edb v\u1edbi nh\u1edb \u003C3", 
        "can_remove": false, 
        "created_time": "2013-11-13T05:38:12+0000", 
        "like_count": 3, 
        "user_likes": false 
      } 
      ... 
     ], 
     "paging": { 
      "cursors": { 
        "after": "MjU0", 
        "before": "Mzk4" 
      }, 
      "next": "https://graph.facebook.com/v1.0/395320319544/comments?limit=25&after=MjU0" 
     } 
   } 
  } 
}

根據(jù)next的url再請求可以獲取下一頁的評論內(nèi)容

代碼如下：

<?php 
$url = 'http://www.example.com/'; 
$api = 'https://graph.facebook.com/comments/?ids='; 
 
$result = json_decode(file_get_contents($api.urlencode($url)), true); 
 
print_r($result); 
?>

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