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Login with Facebook and Twitter using PHP

Facebook and Twitter are the most popular social network and both networks offering oAuth support. So in this tutorial, I have explained how to implement Login with Facebook and Twitter functionality to your website using PHP.

Here in this tutorial, I have explained simple steps to implement Login with Facebook and Twitter with demo.

You can view the live demo from the Demo link and can download the script from the Download link below.
Demo Download

So let’s start the coding

Steps1: As I have used HybridAuth Library with this example, so you need download HybridAuth PHP library from Github.

Steps2: You also need to get Developer API(OAuth) Key and Secret from Facebook and Twitter.

Steps3: Now you need to create config.php and add below code to the file.

$config =array(
"base_url" => "",
"providers" => array (
"Facebook" => array (
"enabled" => true,
"keys" => array ( "id" => "XXXXXXXXXXXX", "secret" => "XXXXXXXXXXXX" ),
"Twitter" => array (
"enabled" => true,
"keys" => array ( "key" => "XXXXXXXXXXXX", "secret" => "XXXXXXXXXXXX" )
"debug_mode" => false,
"debug_file" => "",

Steps4: Now create index.php and add below code.
<div align="center">
<a href="login.php?provider=Facebook"><img src='images/facebook.png'></img></a> <br><br>
<a href="login.php?provider=Twitter"><img src='images/twitter.png'></img></a> <br><br>

Steps5: You will need to create login.php and add below code.
if(isset($_GET['provider'])) {
$provider = $_GET['provider'];
try {
$hybridauth = new Hybrid_Auth( $config );
$authProvider = $hybridauth->authenticate($provider);
$user_profile = $authProvider->getUserProfile();
if($user_profile && isset($user_profile->identifier)) {
echo "<b>User Name</b> :".$user_profile->displayName."<br>";
echo "<b>Profile URL</b> :".$user_profile->profileURL."<br>";
echo "<b>Profile Image</b> :".$user_profile->photoURL."<br> ";
echo "<img src='".$user_profile->photoURL."'/><br>";
echo "<b>Email</b> :".$user_profile->email."<br>";
echo "<br> <a href='logout.php'>Logout</a>";
catch( Exception $e ) {
switch( $e->getCode() ) {
case 0 : echo "Unspecified error."; break;
case 1 : echo "Hybridauth configuration error."; break;
case 2 : echo "Provider not properly configured."; break;
case 3 : echo "Unknown or disabled provider."; break;
case 4 : echo "Missing provider application credentials."; break;
case 5 : echo "Authentication failed. "
. "The user has canceled the authentication or the provider refused the connection.";
case 6 : echo "User profile request failed. Most likely the user is not connected "
. "to the provider and he should to authenticate again.";
case 7 : echo "User not connected to the provider.";
case 8 : echo "Provider does not support this feature."; break;
echo "<br /><br /><b>Original error message:</b> " . $e->getMessage();
echo "<hr /><h3>Trace</h3> <pre>" . $e->getTraceAsString() . "</pre>";

Steps6: Finally create logout.php with the below code to handle logout functionality.
header("Location: index.php");

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