添加POST參數FB：登錄按鈕

Question

你好我嘗試當用戶點擊與Facebook按鈕登錄設置POST。這是因爲我做了，如果您已註銷，但在Facebook的loged代碼那麼你會自動在該網站再次loged ......所以如果你CLIC註銷，你永遠不會登出..

爲了避免這種情況我嘗試把一根柱子，設置一個經典的條件

if (isset ($_POST['fbconnect'])) 

我只需要添加一個隱藏的輸入，併發送形式usinf fb：登錄按鈕

這裏是我有什麼嘗試......沒有運氣。

<form name="fbconnect" method="post"> 
<input type="hidden" name="fbconnect" value="fbconnect" /> 

<div id="fb-root"></div> 
<fb:login-button scope='email,user_birthday'></fb:login-button></form> 
<?php 
} 
?> 
<script> 
window.fbAsyncInit = function() { 
FB.init({ 
appId : <?=YOUR_APP_ID?>, 
status : true, 
cookie : true, 
xfbml : true, 
oauth : true, 
}); 


FB.Event.subscribe('auth.login', function(response) { 
// ------------------------------------------------------ 
// This is the callback if everything is ok 
    $(this).parents('form').submit(); 
}); 
}; 

(function(d){ 
var js, id = 'facebook-jssdk'; if (d.getElementById(id)) {return;} 
js = d.createElement('script'); js.id = id; js.async = true; 
js.src = "//connect.facebook.net/en_US/all.js"; 
d.getElementsByTagName('head')[0].appendChild(js); 
}(document)); 
</script> 

而且香港專業教育學院試圖與形式的名稱，以取代$(this).parents('form').submit();形式，但它dosent工作要麼

我也試過這個

<script> 
window.fbAsyncInit = function() { 
FB.init({ 
appId : <?=YOUR_APP_ID?>, 
status : true, 
cookie : true, 
xfbml : true, 
oauth : true, 
}); 


FB.Event.subscribe('auth.login', function(response) { 
// ------------------------------------------------------ 
// This is the callback if everything is ok 

var url = "index.php"; 
var params = "fbconnect=fbconnect"; 
http.open("POST", url, true); 

//Send the proper header information along with the request 
http.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); 
http.setRequestHeader("Content-length", params.length); 
http.setRequestHeader("Connection", "close"); 

http.onreadystatechange = function() {//Call a function when the state changes. 
    if(http.readyState == 4 && http.status == 200) { 
     alert(http.responseText); 
    } 
} 
http.send(params); 


}); 
}; 

(function(d){ 
var js, id = 'facebook-jssdk'; if (d.getElementById(id)) {return;} 
js = d.createElement('script'); js.id = id; js.async = true; 
js.src = "//connect.facebook.net/en_US/all.js"; 
d.getElementsByTagName('head')[0].appendChild(js); 
}(document)); 
</script> 

Answer 1

一個更好的做法是，當使用重定向用戶註銷，而不是POST，即：

HTML：

<a onclick="FB.logout">Logout</a> 

和Javascript：

FB.Event.subscribe('auth.authResponseChange', function(response) { 
    if (response.status == "connected") { 
    // log in login 
    } 
    else if (response.status != "connected") { 
    // logout logic, i.e 
    // location.href = "/sessions/logout"; 
    alert("User has disconnected") 
    location.href = "/index.php?fbconnect=fbconnect" 
    } 
}); 

，如果你堅持一個帖子，你可以使用jQuery simplfly事情：

FB.Event.subscribe('auth.login', function(response) { 
    $.post("index.php", {fbconnect: fbconnect}, function(data, response) { 
    alert(data); 
    }); 

});