Question

我正在按照本教程（https://developers.facebook.com/docs/mediasolutions/topic_search/v2.9）使用php，ajax和facebook graph api查找搜索查询的相关主题。虽然我为每次登录尝试生成应用程序访问令牌，但我一直收到此错误：“（＃15）必须使用app access_token调用此方法。”

我的代码如下：

的的index.php

<html>
<head>
<script src="http://connect.facebook.net/en_US/all.js"></script>
  <script src="js/jquery.js"></script>
</head>

<body>
<fb:login-button autologoutlink="true" onlogin="OnRequestPermission();">
</fb:login-button>
<script language="javascript" type="text/javascript">
    FB.init({
        appId: '1619055624801235',
        status: true, 
        cookie: true, 
        xfbml: true,
         version : 'v2.2'
    });    
</script>
<!-- <button name="my_full_name" onclick="ShowMyName()" value="My Name" /> -->
<script language="javascript" type="text/javascript">
// function ShowMyName() {
        // FB.api("/me",
                // function (response) {
                    // alert('Name is ' + response.name);
                // });

    // }

</script>
<input type = "text" id = "searchQuery" name="searchQuery" placeholder = "Search for posts"></input>
<button name="showPosts" onclick="ShowPosts()" >Show Posts</button>
<script language="javascript" type="text/javascript">
function ShowPosts(){
    var query = document.getElementById("searchQuery").value;
    var accessToken;
    //alert(query);
    FB.getLoginStatus(function(response) {
    if (response.status === 'connected') {
    $.ajax({url:"js-login.php",
    type: "get",
    success:function(response){
        accessToken = response;
        fbDataCollect(accessToken);
    }});
  }
});

}

function fbDataCollect(accessToken){
    FB.api(
    "/search",
    {
        "type": "topic",
        "q": searchQuery,
        "fields": "id,name,page",
        "access_token": accessToken
    },
    function (response) {
     console.log(accessToken);
      console.log(response);
      if (response && !response.error) {
        /* handle the result */
            alert(response);
      } 

    }
);


}
</script>

<div id="fb-root"></div>
</body>


</html>

JS-login.php中

    <?php
include 'php-graph-sdk-5.0.0/src/Facebook//autoload.php';
$fb = new Facebook\Facebook([
  'app_id' => '1619055624801235',
  'app_secret' => '6a4fed7bfe0321bb21ad68afcbe2f640',
  'default_graph_version' => 'v2.2',
  ]);

$helper = $fb->getJavaScriptHelper();

try {
  $accessToken = $helper->getAccessToken();
} catch(Facebook\Exceptions\FacebookResponseException $e) {
  // When Graph returns an error
      echo 'Graph returned an error: ' . $e->getMessage();
      exit;
    } catch(Facebook\Exceptions\FacebookSDKException $e) {
      // When validation fails or other local issues
  echo 'Facebook SDK returned an error: ' . $e->getMessage();
  exit;
}

if (! isset($accessToken)) {
  echo 'No cookie set or no OAuth data could be obtained from cookie.';
  exit;
}

// Logged in
//echo '<h3>Access Token</h3>';
//var_dump($accessToken->getValue());

$_SESSION['fb_access_token'] = (string) $accessToken;
echo $_SESSION['fb_access_token'];
?>

请帮忙。提前谢谢。

主题搜索使用Facebook API无法正常工作

0 个答案: