Linkedin Login API allows the user to sign into the website using their Linkedin account without sign up on that website.
Here we can give an option to the user
to register/ login to our system with their Linkedin Account. The
process is like this: If the user click on "Login with Linkedin"
button then it will ask Linkedin user name and password. If the
user is using the system first time then it will fill up the
registration form and display first name, last name,
email and Gender fields. There will be no password field as the user is register / connect through Gmail. Once the user
click on submit, our system will save the data in the server
with the reference number sent by Linkedin. Next time when the
user come and click on "Login with Linkedin" our system will check
the reference number in our database, if it matches then it will
sent the user directly to My Account page.
You can download the attached file and get the basic html form
and other required files used in this project.
<?php
define("CLIENT_ID", "************");
define("CLIENT_SECRET", "************");
define("REDIRECT_URI", "http://www.a2zwebhelp.com/demo/login_with_linkedin/");
define("SCOPE", 'r_basicprofile r_emailaddress' );
?>
$email = $user->emailAddress;
$passcode = $user->id;
$fname = $user->firstName;
$lname = $user->lastName;
$profilepic = $user->pictureUrl;
/*Check if the user connected before */
$sql = db_query("select * from register_linkedin where passcode='".$passcode."'");
$numrow = mysqli_num_rows($sql);
if($numrow > 0){
$_SESSION['email'] = $email;
$_SESSION['passcode'] = $passcode;
header('Location:myaccount.php');
exit();
}
CREATE TABLE IF NOT EXISTS `register_linkedin` ( `id` int(11) NOT NULL AUTO_INCREMENT, `firstname` varchar(50) DEFAULT NULL, `lastname` varchar(50) DEFAULT NULL, `email` varchar(60) DEFAULT NULL, `gender` varchar(10) DEFAULT NULL, `passcode` varchar(100) DEFAULT NULL, `profilepic` varchar(250) DEFAULT NULL, `loginwith` varchar(10) DEFAULT NULL, `status` int(11) DEFAULT NULL, PRIMARY KEY (`id`), UNIQUE KEY `id` (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
