Return of the oci_new_cursor

Question

Hello! I have the following question: the oracle function for PHP oci_new_cursor, can only be used when the cursor already exists in the database?

For example, I just created my query within my php code:

$query2 = "DECLARE
v_consulta NUMBER;
CURSOR cursbv IS
 SELECT proxnumorc FROM pcconsum FOR UPDATE of proxnumorc;
 BEGIN
   OPEN cursbv;
     FETCH cursbv INTO v_consulta;
     UPDATE pcconsum SET proxnumorc = proxnumorc + 1;
     COMMIT;
   CLOSE cursbv;
 END;";


$s2 = oci_parse($c, $query2);

$r2 = oci_execute($s2);

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Can I use this function in my code? Because I need to recover the value of the select that is inside the cursor. Obs: I’m using oracle 11g. If anyone knows how it works and can help me. Thank you in advance