PHP LDAP Authentication sample

gistfile1.php

<?php
// LDAP variables
$ldaphost = "";  // your ldap servers
$ldapport = 389;                 // your ldap server's port number
// Connecting to LDAP
$ldapconn = ldap_connect($ldaphost, $ldapport)
          or die("Could not connect to $ldaphost");
ldap_set_option($ldapconn, LDAP_OPT_PROTOCOL_VERSION, 3);

if ($ldapconn) {
    // binding to ldap server
    $user = "username";
    $dn = "uid=$user, ou=people, dc=domain, dc=com";
    $pass = 'secretPassword';
    $ldapbind = @ldap_bind($ldapconn, $dn, $pass)
        or die("Can not verify");
    // verify login
    if ($ldapbind) {
        echo "Login successful...";
    } else {
        echo "Login failed...";
    }
}
?>