Open Auth Dialog in Facebook php SDK - php

Question

I am integration Facebook connect in my website using php SDK.. Everything is working fine except that I want that instead of redirecting to facebook for authentication, I want to open OAuth Dialog.. Currently Im using following url for authentication,.. It redirects to facebook but doesn't open OAuth Dailog..
https://www.facebook.com/dialog/oauth?client_id=XXXXXXXXXXX&redirect_uri=http%3A%2F%2Fwww.setsail2nz.com.au%2Fmicrosite%2Ffbalbums.php%3Fpid%3D1&state=ad89eddd7f71e7337785f604710c97e8&scope=user_photos%2Cpublish_stream%2Cmanage_friendlists%2Cemail&display=popup
Any ideas?
EDIT:
I know how to do it with Facebook JS SDK.. But is there a way to do it with php?
Edit 2: Okay now im using JS SDK but still its not opening the dialog.. Here is my code
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({
appId : 'XXXXXXXXXX', // App ID
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml : true, // parse XFBML
oauth : true // enables OAuth 2.0
});
};
// Load the SDK Asynchronously
(function(d){
var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
if (d.getElementById(id)) {return;}
js = d.createElement('script'); js.id = id; js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
ref.parentNode.insertBefore(js, ref);
}(document));
function fblogin()
{
FB.login(function(response)
{
alert(response);
},{perms: "user_photos,publish_stream,manage_friendlists,email"});
}
</script>

Answer 1

Use Javascript SDK
https://developers.facebook.com/docs/reference/javascript/
And FB.login, passing your required permissions

Answer 2

To answer your question about detecting the dialog response with PHP SDK:
The problem is that getloginURL only takes one URL parameter that it uses on success or error. I needed to detect if the user clicked OK or Cancel on the permissions dialog, so I could either redirect to a pre-permissions dialog page, or show the correct logged-in content.
All I did was check if 'error_reason' existed in the url parameters, and if the error was 'user_denied', and took appropriate action. There might be a better way, but this worked for me.
<?php
//Facebook Authentication
$user = $facebook->getUser();
//Get Login URL
$loginUrl = $facebook->getLoginUrl();
//User is logged in
if ($user) {
try {
// Proceed knowing you have a logged in user who's authenticated.
$user_profile = $facebook->api('/me');
} catch (FacebookApiException $e) {
error_log($e);
$user = null;
}
}
//User is not logged in
if (!$user) {
//Check if error_reason was generated and if the user denied login
if (isset($_REQUEST['error_reason']) && ($_REQUEST['error_reason']=='user_denied')) {
//user cancelled permissions dialog thus not logged in to app, redirect elsewhere
echo "<script type='text/javascript'>top.location.href = 'YOUR REDIRECT URL';</script>";
exit;
} else {
//user not logged in so initiate permissions dialog
echo "<script type='text/javascript'>top.location.href = '$loginUrl';</script>";
exit;
}
}
//get user basic description
$userInfo = $facebook->api("/$user");
?>