Parte 2
  Código PHP:
    case 25:    
                            $c=$edValor[$delantero];
                            $delantero++;
                            if (($c=='1')||($c=='2')||($c=='3')||($c=='4')||($c=='5')||($c=='6')||($c=='7')||($c=='8')||($c=='9'))
                            {
                                $estado=33;
                            }
                            else 
                                $estado=35;
                            break;
                        case 26:    
                            $c=$edValor[$delantero];
                            $delantero++;
                            if (($c=='0')||($c=='1'))
                            {
                                $estado=33;
                            }
                            else 
                                $estado=35;
                            break;
                        case 27:    
                            $c=$edValor[$delantero];
                            $delantero++;
                            if ($c=='0')
                            {
                                $estado=33;
                            }
                            else 
                                $estado=35;
                            break;
                        case 28:    
                            $c=$edValor[$delantero];
                            $delantero++;
                            if (($c=='1')||($c=='2')||($c=='3')||($c=='4')||($c=='5')||($c=='6')||($c=='7')||($c=='8')||($c=='9'))
                            {
                                $estado=34;
                            }
                            else 
                                $estado=35;
                            break;
                        case 29:    
                            $c=$edValor[$delantero];
                            $delantero++;
                            if (($c=='0')||($c=='1')||($c=='2')||($c=='3')||($c=='4')||($c=='5')||($c=='6')||($c=='7')||($c=='8')||($c=='9'))
                            {
                                $estado=34;
                            }
                            else 
                                $estado=35;
                            break;
                        case 30:    
                            $c=$edValor[$delantero];
                            $delantero++;
                            if (($c=='0')||($c=='1')||($c=='2')||($c=='3')||($c=='4')||($c=='5')||($c=='6')||($c=='7')||($c=='8'))
                            {
                                $estado=34;
                            }
                            else 
                                $estado=35;
                            break;
                        case 31:    
                            $c=$edValor[$delantero];
                            $delantero++;
                            if (($c=='0')||($c=='1'))
                            {
                                $estado=34;
                            }
                            else 
                                $estado=35;
                            break;
                        case 32:    
                            $c=$edValor[$delantero];
                            $delantero++;
                            if ($c=='0')
                            {
                                $estado=34;
                            }
                            else 
                                $estado=35;
                            break;
                        case 36:    
                            $c=$edValor[$delantero];
                            $delantero++;
                            if (($c=='0')||($c=='1')||($c=='2')||($c=='3')||($c=='4')||($c=='5')||($c=='6')||($c=='7')||($c=='8')||($c=='9'))
                            {
                                $estado=33;
                            }
                            else 
                                $estado=35;
                            break;
                        case 33:    
                            if($delantero==$longitud)
                            {
                                $es="bisiesto";
                                $salir=true;
                            }
                            else
                            {
                                $estado=35;
                            }
                            break;
                        case 34:    
                            if($delantero==$longitud)
                            {
                                $es="noBisiesto";
                                $salir=true;
                            }
                            else
                            {
                                $estado=35;
                            }
                            break;
                        case 35:    
                            $salir=true;
                            break;
                        default:
                            echo "ocurrio un error!!";
                    }    // fin swhish
                }     //fin while
            return $es;
        }//FIN verficarBisiesto()