unexpected 'use' (T_USE)

Content

Hi! I'm trying execute a php code in CP, but, the following error appear: "Parse error:  syntax error, unexpected 'use' (T_USE) in /cgi-bin/mySite.cfg/scripts/cp/customer/development/views/pages/account/detalhe.php"

How can I know the version RNCPHP I need use?

The code is a very simple exemple, just to show the error.

Version

17D

Code Snippet

             <?php 

	use RightNow\Connect\v1_4 as RNCPHP;
	$res = RNCPHP\ROQL::query( "SELECT * FROM Contact WHERE Contact.Login = 'abcdef'");
	 
	if ($res != null){
		echo "Done";
	}

?>