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我是pdo的新手。在这里，我试图使用下面的代码将数据插入到数据库中。但是，我无法将数据插入数据库。我收到以下错误PDO无法将数据插入数据库
Fatal error: Call to a member function prepare() on a non-object
我在SO和互联网上搜索了这个错误。有些人说在你的代码的顶部添加global $conn;。我添加了这些代码，但我得到相同的错误。任何人都告诉我，如果我想清除此错误，我应该怎么做？
的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();
}
$conn = null;
}
}
?>
哪里是你的$声明参数conn？ – rccoros
**数据**是复数和不可数的！ – undone
@undone：复数的意思？不明白 – Karuppiah