phpinfo

_ENV["ORACLE_HOME"] C:\oracle\instantclient_11_2\
_ENV["OS"]  Windows_NT
_ENV["Path"]    C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\oracle\instantclient_11_2;\;

oci8

OCI8 Support    enabled
Version     1.2.5
Revision    $Revision: 1.269.2.16.2.43 $
Active Persistent Connections   0
Active Connections  0
Temporary Lob support   enabled
Collections support     enabled 

PHP-код

<?php
     $conn = OCILogon('mppd1','mppd1', "121.256.476.86:1521/mydatabase");

$query = 'select * from users';

$stid = OCIParse($conn, $query);
//OCIExecute($stid, OCI_DEFAULT);
while ($succ = OCIFetchInto($stid, $row)) {
foreach ($row as $item) {
echo $item." ";
}
echo "<br>\n";
}

OCILogoff($conn);
?>

я получаю эту ошибку

Severity: Warning

Message: ocilogon() [function.ocilogon]: OCIEnvNlsCreate() failed. There is something wrong with your system - please check that PATH includes the directory with Oracle Instant Client libraries