Updating rows in the DB or create new ones

[safemode]

hi

i have create modules that need to Updating rows in the DB or create new ones

  if (isset($_POST["pid"])) {
    try {

        $insert_array = [

            "pid" => $_POST["pid"],
            "purchase" => $_POST["price"]

        ];
        Capsule::table('rasanegarbulkprice')
            ->insert($insert_array);
    } catch(\Illuminate\Database\QueryException $ex){
        echo $ex->getMessage();
    } catch (Exception $e) {
        echo $e->getMessage();
    }
  }

this is my code that i use for inserting

but i want to change it to IF exist update row or create it

[safemode]

hi

why not approved my post ?

i need it