note 89753 added to function.snmpget

I installed standart SNMP-Servies on Windows XP SP2 from install cd. Run this service. But when I use snmpget() or other php-functions to work with SNMP - I have no result. For example, this code: <?php $a = snmpget( "127.0.0.1", "public", "interfaces.iftable.ifentry.ifentry.ifdescr.1" ); echo $a; ?> have no result... But when I use SNMP-manager LoriotPro 4.0, it show me all SNMP information What it can be? ---- Server IP: 91.196.196.205 Probable Submitter: 92.49.237.29 ---- Manual Page -- http://www.php.net/manual/en/function.snmpget.php Edit -- https://master.php.net/note/edit/89753 Del: integrated -- https://master.php.net/note/delete/89753/integrated Del: useless -- https://master.php.net/note/delete/89753/useless Del: bad code -- https://master.php.net/note/delete/89753/bad+code Del: spam -- https://master.php.net/note/delete/89753/spam Del: non-english -- https://master.php.net/note/delete/89753/non-english Del: in docs -- https://master.php.net/note/delete/89753/in+docs Del: other reasons-- https://master.php.net/note/delete/89753 Reject -- https://master.php.net/note/reject/89753 Search -- https://master.php.net/manage/user-notes.php