Error trying to use store procedures and return a cursor

[GilberthRojas]

Hi everyone!
​
I was trying to call from Laravel using the library an Oracle 11g stored procedure that returns a cursor, but it gave me an error!

This would be my code in the routes file:

`Route::get('/', function () {
$pdo = DB::connection('oracle')->getPdo(); // Obtener la conexión PDO

// Nombre del procedimiento almacenado
$procedureName = 'myschema.obt_empleados';

// Preparar la sentencia
$stmt = $pdo->prepare("BEGIN $procedureName(:cursor); END;");
$stmt->bindParam(':cursor', $cursor, PDO::PARAM_STMT);

// Definir el cursor
oci_bind_by_name($stmt, ':cursor', $cursor, -1, OCI_B_CURSOR);

// Ejecutar la sentencia
$stmt->execute();

// Obtener los resultados del cursor
$response = [];
while ($row = oci_fetch_assoc($cursor)) {
    $response[] = $row;
}

// Liberar los recursos
oci_free_statement($cursor);

// Devolver los resultados
var_dump($response);
return view('welcome', compact('response'));

});`

SP code:
create PROCEDURE obt_empleados(
resp OUT SYS_REFCURSOR
) AS
BEGIN
OPEN resp FOR
select * from PLAEMPLEADO;
END obt_empleados;
/

Error:
oci_bind_by_name(): Argument #1 ($statement) must be of type resource, Yajra\Pdo\Oci8\Statement given

The error tells me what it is, but I don't know how to solve it.