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[HELP] fwrite and delete function

TeeGee

By TeeGee
in PHP Coding Help

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TeeGee Newbie

TeeGee

Posted
Posted

hello there..

im planning to create a simple Online Users that is integrated to Facebook sdk. :)

 

So far, i have the ff codes:

 

index.php (this is where the online users listed)

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Online Users</title>
<link type="text/css" rel="stylesheet" href="style.css" />
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/ouser.js"></script>
</head>
<body>

<table id="online">

</table>

</body>
</html>

 

javascript file:

$(document).ready(
function() {	
	setInterval (loadLog, 2500);		
});


function loadLog(){		
	$.ajax({
		url: "onlineusers.html",
		cache: false,
		success: function(html){	
			$("#online").html(html); 			
	  	},
	});
}

 

test.php (This is my temporary file to test the Login authentication for FB.. THIS IS WORKING)

<?php
  session_start();
  require_once("src/facebook.php");
  $config = array(
    'appId' => '285873338131549',
    'secret' => '56b9f71b9fd307a033aeeb725893fc89',
   );

  $facebook = new Facebook($config);
  $user_id = $facebook->getUser();
?>
<?php
    if($user_id) {
      try {
        $user_profile = $facebook->api('/me','GET');
	$profile = $user_profile['name'];
	$_SESSION['user'] = $profile; //PUT USER TO SESSION
	$_SESSION['user_id'] = $user_id; 

$line = file_get_contents("onlineusers.html");
$line = trim($line); // removes leading/trailing blank lines
$line = explode("\n", $line);
$line[] = '<tr><td><img src="https://graph.facebook.com/' . $_SESSION['user_id'] . '/picture"width="25"height="25"/></td><td>' . $_SESSION['user'] . '</td><td><a href="http://www.fb.com/' . $_SESSION['user_id'] . '" target="_blank">View Profile</a></td></tr>';
$line = array_unique($line);
$line = implode("\n", $line);
file_put_contents("onlineusers.html", $line);
echo 'OK';


} catch(FacebookApiException $e) {
        $login_url = $facebook->getLoginUrl(); 
echo '<a href="' . $login_url . '">LOGIN</a>';
        error_log($e->getType());
        error_log($e->getMessage());
      }   
    } else {
      $login_url = $facebook->getLoginUrl();
echo '<a href="' . $login_url . '">LOGIN</a>';
    }
echo "<a href='logout.php'>Logout</a>";
  ?>

 

What it does is, it simple insert the picture and name of the user in a flat html file..

http://www.barkadafm.org/onlineusers/index.php

 

Now, my problem is,.

I dont know how to delete the pic and name if a user logs out or disconnect..

 

Example, my name is Name5 and i will connect / login using http://www.barkadafm.org/onlineusers/test.php

for the first connect, my name and picture will be inserted to my flat html file..

Let's assume that there'are already 4 users online.. and the 5th data will be mine.

 

Pic1 Name1

Pic2 Name2

Pic3 Name3

Pic4 Name4

Pic5 Name5

 

what i want is,

if i click Logout, i want my picture and name be deleted from the flat file (onlineusers.html)

and destroy my 2 variables set at test.php

 

Please help me..

Thank you!

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