$cs = "//oracle.ourdomain.com:1521/XE";

$oc = oci_pconnect("hr","password",$cs);

if(!$oc) { print oci_error(); }

$stid = oci_parse($oc, 'SELECT id FROM zz_system_options WHERE id = 1');
oci_execute($stid);

$stmt = oci_parse($oc, "INSERT INTO zz_system_options (id,option_name) VALUES (zz_system_optionsids.nextval,'load testing')");
oci_execute($stmt);

echo "hello world";