Loginform with session and Ldap

[Setzi138]

I want to create a login form that uses an Ldap for authentication

after that the name should be shown at the top of the page 

for that i want to create a session

this is the code

<?php
    session_start();
?>

<?php

	$ldap_dn = "uid=".$_POST["username"].",dc=example,dc=com";
	$ldap_password = $_POST["password"];
	
	$ldap_con = ldap_connect("ldap.forumsys.com");
	ldap_set_option($ldap_con, LDAP_OPT_PROTOCOL_VERSION, 3);

	if(@ldap_bind($ldap_con,$ldap_dn,$ldap_password))
		$_SESSION['username'] = ["username"];
		echo $_SESSION['username'];

	else
		echo "Invalid Credential";

?>

but there are 2 warnings which i don't understand

 

Warning: Undefined array key "username" in C:\xampp\htdocs\Kulinarik\ldap.php on line 15
Parse error: syntax error, unexpected token "else", expecting end of file in C:\xampp\htdocs\Kulinarik\ldap.php on line 17

 

i would really appreciate your help 
Thank you

[Setzi138]

Changed it a bit now it works better but another Error arised

Warning: Array to string conversion in C:\xampp\htdocs\Kulinarik\ldap.php on line 16
Array

 

<?php
    session_start();
?>

<?php

	$ldap_dn = "uid=".$_POST["username"].",dc=example,dc=com";
	$ldap_password = $_POST["password"];
	
	$ldap_con = ldap_connect("ldap.forumsys.com");
	ldap_set_option($ldap_con, LDAP_OPT_PROTOCOL_VERSION, 3);

	if(@ldap_bind($ldap_con,$ldap_dn,$ldap_password))
		{
		$_SESSION['username'] = ["username"];
		echo $_SESSION['username'];
		}

	else
		{
		echo "Invalid Credential";
		}
?>

 

[Barand]

If no login data has yet been sent to the form, there will be no POST data (such as when the page first loads). You need to check if data was posted

if ($_SERVER['REQUEST_METHOD']=='POST') {


     // your above code goes here

}

 

[Barand]

3 minutes ago, Setzi138 said:

$_SESSION['username'] = ["username"];

That line is setting the session value to an array. did you mean  = $_POST['username'] ?

[Setzi138]

ahhh

Thank you

it works now 

 

<?php
    session_start();
?>

<?php

	$ldap_dn = "uid=".$_POST["username"].",dc=example,dc=com";
	$ldap_password = $_POST["password"];
	
	$ldap_con = ldap_connect("ldap.forumsys.com");
	ldap_set_option($ldap_con, LDAP_OPT_PROTOCOL_VERSION, 3);

	if(@ldap_bind($ldap_con,$ldap_dn,$ldap_password))
		{
		$_SESSION['username'] = $_POST["username"];
		echo($_SESSION['username']);
		}

	else
		{
		echo "Invalid Credential";
		}
?>

 

[Barand]

When I last worked with LDAP, I just used to interrogate the network LDAP servers to see who was logged in and what groups/depts etc they were in. ($_SERVER['login_user'])

[Setzi138]

just one other question

is there a pure php way to redirect to the homepage after login?

 i tried with java but it didn#t worked out

<?php
    session_start();
?>

<?php

	$ldap_dn = "uid=".$_POST["username"].",dc=example,dc=com";
	$ldap_password = $_POST["password"];
	
	$ldap_con = ldap_connect("ldap.forumsys.com");
	ldap_set_option($ldap_con, LDAP_OPT_PROTOCOL_VERSION, 3);

	if(@ldap_bind($ldap_con,$ldap_dn,$ldap_password))
		{
		$_SESSION['username'] = $_POST["username"];
		echo '<script type="text/javascript">window.open("C:\xampp\htdocs\Kulinarik\Startseite.php")</script>';

		}

	else
		{
		echo "Invalid Credential";
		}
?>

 

[Barand]

<?php

header("Location: Startseite.php");

?>