PDO unable to insert datas into database

Question

I'm newbie with pdo. Here i'm trying to insert the datas into database using this below coding. But, i cannot able to insert the datas into database. I'm getting this following error

Fatal error: Call to a member function prepare() on a non-object

I searched on SO and internet about this error. Some people says add global $conn; at the top of your code. I added these code but i'm getting same error. Anyone tell me what should i do if i want to clear this error?

Config.php

      <?php
            $user = "root";
            $password = "password";

            try
            {
                $conn = new PDO('mysql:host=localhost;dbname=evouchers', $user, $password);
                $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
            }
            catch(PDOException $e)
            {
                'DATABASE CONNECTION ERROR' .$e->getMessage();
            }
        ?>

    **Database.php**

        <?php
            session_start();

            include('config.php');

                if(isset($_POST['submit_val']))
                {
                    $cmeal = $_POST['meal'];
                    try
                    {
                        $stmt = $conn->prepare("INSERT INTO ebmealplans ( MealPlanName, CreatedOn ) VALUES ( :cmeal, NOW() )");
                        $conn->errorInfo();
                        $stmt->bindParam(':cmeal', $cmeal, PDO::PARAM_STR);
                        $stmt->execute();
                    }
                    catch(PDOException $e)
                    {
                        'Query failed to insert into database ' .$e->getMessage();
                    }

                    $croom = $_POST['room'];
                    $ref_key = $conn->lastInsertId();
                    try
                    {
                        $stmt = $conn->prepare("INSERT INTO ebroomtypes ( RoomTypeName, CreatedOn ) VALUES ( :croom, NOW() )");
                        $conn->errorInfo();
                        $stmt->bindParam(':croom', $croom, PDO::PARAM_STR);
                        $stmt->execute();
                    }
                    catch(PDOException $e)
                    {
                        'Query failed to insert into database ' .$e->getMessage();
                    }


<*************** UPDATED CODES ***************>


  $creference = $_POST['reference'];
            $crefdate = $_POST['refdate'];
            $ccin = $_POST['cin'];
            $cout = $_POST['out'];
            $cgname = $_POST['gname'];
            $ctotaladults = $_POST['totaladults'];
            $cchildrens = $_POST['childrens'];
            $cinfants = $_POST['infants'];
            $cgphone = $_POST['gphone'];
            $cgemail = $_POST['gemail'];
            $cgfax = $_POST['gfax'];
            $cgaddress1 = $_POST['gaddress1'];
            $cgaddress2 = $_POST['gaddress2'];
            $cregion = $_POST['region'];
            $ccity = $_POST['city'];
            $cstate = $_POST['city_state'];
            $ccountry = $_POST['country'];
            $ccurrency = $_POST['currency'];
            $ccurrencyto = $_POST['tocurrency'];
            $camount = $_POST['camount'];
            $ccurrencyvalue = $_POST['currencyvalue'];
            $voucher_fk = $conn->lastInsertId();
            try
            {
                $stmt = $conn->prepare("INSERT INTO ebvouchers ( VoucherReference, BookingDate, CheckIndate, CheckOutDate, MealPlanID_Fk, RoomTypeID_Fk, GuestName, TotalAdults, Childrens, Infants, GuestPhone, GuestEmail, GuestFax, GuestAddressLine1, GuestAddressLine2, GuestRegion, GuestCity, GuestState, GuestCountry, GuestCurrency, GuestCurrencyTo, CurrencyAmount, GuestCurrencyValue, VoucherCreatedOn ) VALUES ( :reference, :refdate, :ccin, :cout, :r_key, :r_key, :gname, :totaladults, :childrens, :infants, :gphone, :gemail, :gfax, :gaddress1, :gaddress2, :gregion, :city, :state, :country, :currency, :currencyto, :amount, :currencyvalue, NOW() )");
                $conn->errorInfo();
                $stmt->bindParam(':reference', $creference, PDO::PARAM_STR);
                $stmt->bindParam(':refdate', $crefdate, PDO::PARAM_STR);
                $stmt->bindParam(':ccin', $ccin, PDO::PARAM_STR);
                $stmt->bindParam(':cout', $cout, PDO::PARAM_STR);
                $stmt->bindParam(':r_key', $ref_key, PDO::PARAM_STR);
                $stmt->bindParam(':r_key', $ref_key, PDO::PARAM_STR);
                $stmt->bindParam(':gname', $cgname, PDO::PARAM_STR);
                $stmt->bindParam(':totaladults', $ctotaladults, PDO::PARAM_STR);
                $stmt->bindParam(':childrens', $cchildrens, PDO::PARAM_STR);
                $stmt->bindParam(':infants', $cinfants, PDO::PARAM_STR);
                $stmt->bindParam(':gphone', $cgphone, PDO::PARAM_STR);
                $stmt->bindParam(':gemail', $cgemail, PDO::PARAM_STR);
                $stmt->bindParam(':gfax', $cgfax, PDO::PARAM_STR);
                $stmt->bindParam(':gaddress1', $cgaddress1, PDO::PARAM_STR);
                $stmt->bindParam(':gaddress2', $cgaddress2, PDO::PARAM_STR);
                $stmt->bindParam(':gregion', $cregion, PDO::PARAM_STR);
                $stmt->bindParam(':city', $ccity, PDO::PARAM_STR);
                $stmt->bindParam(':state', $cstate, PDO::PARAM_STR);
                $stmt->bindParam(':country', $ccountry, PDO::PARAM_STR);
                $stmt->bindParam(':currency', $ccurrency, PDO::PARAM_STR);
                $stmt->bindParam(':currencyto', $ccurrencyto, PDO::PARAM_STR);
                $stmt->bindParam(':amount', $camount, PDO::PARAM_STR);
                $stmt->bindParam(':currencyvalue', $ccurrencyvalue, PDO::PARAM_STR);
                $stmt->execute();
            }
            catch(PDOException $e)
            {
                'Query failed to insert into database ' .$e->getMessage();
            }

<*************** UPDATED CODES ***************>

                    foreach ( $_POST['slno'] as $key=>$slno )
                    {
                        $date = $_POST['date'][$key];
                        $particulars = $_POST['particulars'][$key];
                        $noofnights = $_POST['noofnights'][$key];
                        $rate = $_POST['rate'][$key];
                        $price = $_POST['price'][$key];
                        $tax = $_POST['tax'][$key];
                        $nettotal = $_POST['nettotal'];
                        $totalamount = $_POST['totalamount'];
                        $finaltotal = $_POST['finaltotal'];
                        $c_date = $date;
                        $c_slno = $slno;
                        $c_particulars = $particulars;
                        $c_noofnights = $noofnights;
                        $c_rate = $rate;
                        $c_price = $price;
                        $c_tax = $tax;
                        $c_nettotal = $nettotal;
                        $c_totalamount = $totalamount;
                        $c_finaltotal = $finaltotal;

                        try
                        {
                            $stmt = $conn->prepare("INSERT INTO ebvouchertariffs ( TariffSlNo, TariffDate, TariffParticulars, NoOfNights, TariffRate, TariffPrice, TariffTax, TariffNetTotal, TariffAddTotal, TariffFinalTotal, VoucherID_Fk, CreatedOn ) VALUES ( :c_slno, :c_date, :c_particulars, :c_noofnights, :c_rate, :c_price, :c_tax, :c_nettotal, :c_totalamount, :c_finaltotal, :voucher_fk, NOW() )");
                        $conn->errorInfo();
                        $stmt->bindParam(':c_slno', $c_slno, PDO::PARAM_STR);
                        $stmt->bindParam(':c_date', $c_date, PDO::PARAM_STR);
                        $stmt->bindParam(':c_particulars', $c_particulars, PDO::PARAM_STR);
                        $stmt->bindParam(':c_noofnights', $c_noofnights, PDO::PARAM_STR);
                        $stmt->bindParam(':c_rate', $c_rate, PDO::PARAM_STR);
                        $stmt->bindParam(':c_price', $c_price, PDO::PARAM_STR);
                        $stmt->bindParam(':c_tax', $c_tax, PDO::PARAM_STR);
                        $stmt->bindParam(':c_nettotal', $c_nettotal, PDO::PARAM_STR);
                        $stmt->bindParam(':c_totalamount', $c_totalamount, PDO::PARAM_STR);
                        $stmt->bindParam(':c_finaltotal', $c_finaltotal, PDO::PARAM_STR);
                        $stmt->bindParam(':voucher_fk', $voucher_fk, PDO::PARAM_STR);
                        $stmt->execute();
                        }
                        catch(PDOException $e)
                        {
                            'Query failed to insert into database ' .$e->getMessage();
                        }

                        $conn = null;

                        }
                }
            ?>

Answer 1

You did not print your exception. If you have any exception you will not get it. and i think problem in your $conn= null; $conn = null; this line makes your connection object invalid and after executing this line you have invalid pdo object.for this you have got this error in loop. it should execute all other query before this line is executed. just remove this line. and print your exception message like this:

Try this:

<?php
    session_start();

    include('config.php');

        if(isset($_POST['submit_val']))
        {
            $cmeal = $_POST['meal'];
            try
            {
                $stmt = $conn->prepare("INSERT INTO ebmealplans ( MealPlanName, CreatedOn ) VALUES ( :cmeal, NOW() )");
                $conn->errorInfo();
                $stmt->bindParam(':cmeal', $cmeal, PDO::PARAM_STR);
                $stmt->execute();
            }
            catch(PDOException $e)
            {
                die('Query failed to insert into database ' .$e->getMessage());
            }

            $croom = $_POST['room'];
            $ref_key = $conn->lastInsertId();
            try
            {
                $stmt = $conn->prepare("INSERT INTO ebroomtypes ( RoomTypeName, CreatedOn ) VALUES ( :croom, NOW() )");
                $conn->errorInfo();
                $stmt->bindParam(':croom', $croom, PDO::PARAM_STR);
                $stmt->execute();
            }
            catch(PDOException $e)
            {
               die( 'Query failed to insert into database ' .$e->getMessage());
            }

            foreach ( $_POST['slno'] as $key=>$slno )
            {
                $date = $_POST['date'][$key];
                $particulars = $_POST['particulars'][$key];
                $noofnights = $_POST['noofnights'][$key];
                $rate = $_POST['rate'][$key];
                $price = $_POST['price'][$key];
                $tax = $_POST['tax'][$key];
                $nettotal = $_POST['nettotal'];
                $totalamount = $_POST['totalamount'];
                $finaltotal = $_POST['finaltotal'];
                $c_date = $date;
                $c_slno = $slno;
                $c_particulars = $particulars;
                $c_noofnights = $noofnights;
                $c_rate = $rate;
                $c_price = $price;
                $c_tax = $tax;
                $c_nettotal = $nettotal;
                $c_totalamount = $totalamount;
                $c_finaltotal = $finaltotal;

                try
                {
                    $stmt = $conn->prepare("INSERT INTO ebvouchertariffs ( TariffSlNo, TariffDate, TariffParticulars, NoOfNights, TariffRate, TariffPrice, TariffTax, TariffNetTotal, TariffAddTotal, TariffFinalTotal, VoucherID_Fk, CreatedOn ) VALUES ( :c_slno, :c_date, :c_particulars, :c_noofnights, :c_rate, :c_price, :c_tax, :c_nettotal, :c_totalamount, :c_finaltotal, :voucher_fk, NOW() )");
                $conn->errorInfo();
                $stmt->bindParam(':c_slno', $c_slno, PDO::PARAM_STR);
                $stmt->bindParam(':c_date', $c_date, PDO::PARAM_STR);
                $stmt->bindParam(':c_particulars', $c_particulars, PDO::PARAM_STR);
                $stmt->bindParam(':c_noofnights', $c_noofnights, PDO::PARAM_STR);
                $stmt->bindParam(':c_rate', $c_rate, PDO::PARAM_STR);
                $stmt->bindParam(':c_price', $c_price, PDO::PARAM_STR);
                $stmt->bindParam(':c_tax', $c_tax, PDO::PARAM_STR);
                $stmt->bindParam(':c_nettotal', $c_nettotal, PDO::PARAM_STR);
                $stmt->bindParam(':c_totalamount', $c_totalamount, PDO::PARAM_STR);
                $stmt->bindParam(':c_finaltotal', $c_finaltotal, PDO::PARAM_STR);
                $stmt->bindParam(':voucher_fk', $voucher_fk, PDO::PARAM_STR);
                $stmt->execute();
                }
                catch(PDOException $e)
                {
                    die('Query failed to insert into database ' .$e->getMessage());
                }

                //$conn = null;

                }
        }
    ?>