<?php
// Set the ldap server
$ldapurl = "host.domain.tld";
$ldapuser = "user@domain.tld";
$ldappass = 'userpassword';

// Set the debug flag
$debug = true;

// Set debugging
if ($debug) {
  ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, 7);
}

// connect to ldap server
$ldapconn = ldap_connect($ldapurl) or die ("Couldn't connect");

// binding to ldap server
echo "Trying to bind with $ldapuser - $ldappass\n";
$ldapbind = @ldap_bind($ldapconn, $ldapuser, $ldappass);

if (!$ldapbind) {
echo "Unable to bind to server $ldapurl\n";
echo "OpenLdap error message: " . ldap_error($ldapconn) . "\n";
exit;
}

// Rest of code goes here

?>