[jerry2801]

$conn = Helper::createOciConnect();
$cur = oci_new_cursor($conn);
$statement = oci_parse($conn,$sql);
oci_bind_by_name($statement,'CR',$cur,-1,OCI_B_CURSOR);
oci_execute($statement);
oci_execute($cur); // if SP set CR null, this line will take error

in the SP,
cr:=null;

how can i do?