These are some handy queries you will need when building Facebook Apps. As I work on Facebook stuff building out FanPageEngine tool and building various Facebook Apps, I spend hours figuring this stuff out so I don’t want it to vanish after I use it. Bookmark this page. I will be adding more and more to it as I find new nuggets of useful code.

CURL Code For Getting Data From Facebook Graph API

<?php

function getsomeinfo($id,$token) {
	
  $url = "https://graph.facebook.com/YOUR_QUERY_HERE;
  $ch = curl_init($url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
  curl_setopt($ch, CURLOPT_HTTPHEADER, array('Host: graph.facebook.com'));
  $output1 = curl_exec($ch);
  curl_close($ch);
	
  return $output;
	
}

$thedata = json_decode(getsomeinfo(PAGE_ID/USER_ID,ACCESS_TOKEN),true);

?>

List of Apps Already Installed On A Page

https://graph.facebook.com/PAGE_ID/tabs?access_token=PAGE_ACCESS_TOKEN

Need A Page_Access_Token? Here Is How To Get It

https://graph.facebook.com/PAGE_ID/?fields=access_token&access_token=ACCESS_TOKEN

Get Information About A Given Page

https://graph.facebook.com/PAGE_ID/?metadata=1&access_token=ACCESS_TOKEN

Connect To Facebook From A Web Page

<?php

session_start();

if($_GET['pros'] == '1') {

    if(isset($_SESSION['access_token']) && isset($_SESSION['uid'])) {
       $graph_url = "https://graph.facebook.com/me?" .
         "access_token=" . $_SESSION['access_token'];

		$_SESSION['ai'] = $ai;
		$session = $_SESSION;
		$uid = $_SESSION['uid'];
		$me = json_decode(file_get_contents($graph_url), true);
		
     } 

}

if(!$me) {

   $url = (!empty($_SERVER['HTTPS'])) ? "https://".$_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI'] :
       "http://".$_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI'];
   
   $url = $url.'&pros=1';
		
   $loginUrl = 'https://www.facebook.com/dialog/oauth?'
        . 'client_id=YOUR_APP_ID&redirect_uri='.$uuurl.'&'
        . 'scope=email,manage_pages,OTHER_PERMISSIONS_REQUEST_LIST&'
        . 'response_type=token';
		
   echo '<center><a href="'.$loginUrl.'">'
        . '<img src="http://static.ak.fbcdn.net/rsrc.php/zB6N8/hash/4li2k73z.gif" border="0">'
        . '</a></center>';

} else {

   echo "Hello ".$me['first_name'];

}

?>