Can php ldap authentication with active directory send client IP instead of server IP?

When authenticating to ldap using the following php code:

$ldap = ldap_connect("ldap.example.com")
if($bind = ldap_bind($ldap, $_POST['username'], $_POST['password'])) {
  // log them in!
} else {
  // error message
}

Is there any way to sent the 开发者_JS百科client IP address to the AD server rather than the server IP?

No, because your server is what's actually making the connection to AD.

It's not a matter of "sending the IP address", the AD server is going to look at the actual connection and see what the remote address is (your PHP server, in this case).