oracle php connectivity

[Noorain]

i installed xampp & oracle 9i. iu sed following connectivity between php & oracle.

<?
$username="scott";
$password="tiger";
$servicename="noor";

$conn = oci_connect('$username', '$password', '$servicename'); 
if (!$conn){ 
$e = oci_error(); 
print htmlentities($e['message']); 
exit; 
} 
else{ 
echo 'Connection Success!!.'; 
} 
?>

but its show following message:
Fatal error: Call to undefined function oci_connect() in D:\Program Files\xampp\htd ocs\ora-tst\test.php on line

please help how to solve this

[Markus]

This may be of some help.

[zorgi]

Did you edit php.ini? If not try uncommenting following lines

;php_oci8.dll
;php_pdo_oci.dl l

[Noorain]

Thank ypu

ya, i edit two lines in php.ini file. but the connection is not active

[zorgi]

Is phpinfo showing the oracle extension installed?