好的，这张图片显示了使用 while 循环从数据库中检索的表。单击 X 按钮后，所选行将进入另一个名为 trade_history1 的表。简单吧？但是现在，如果您可以查看该行的当前价格和损益，例如....如果我单击订单号 148，则该整行将出现在 trade_history 表中。正确的？但现在它正在做的是他们没有拉出正确的当前价格（列）和利润/损失（列）。相反，他们总是将当前价格和损益的最后一行移到第 148 行的订单中。有什么办法可以解决这个问题？
参考代码
while 循环回声
$query = "SELECT * FROM opentrades where user_id =". $userid; //You don't need a ; like you do in SQL
$result = mysql_query($query);
echo "<table>"; // start a table tag in the HTML
echo "<tr><td>" . "Order Number" . "</td><td>" . "Selection" . "</td><td>" . "Date" . "</td><td>" . "Type" . "</td><td>" . "Size" . "</td><td>" . "Bid Price" . "</td><td>" . "Offer Price" . "</td><td>" ."Stop Loss" . "</td><td>" . "Take Profit" . "</td><td>" . "Current Price" . "</td><td>" ."Profit/Loss(USD)"."</td><td>" ."Close"."</td></tr>" ; //$row['index'] the index here is a field name
while($row = mysql_fetch_assoc($result)){ //Creates a loop to loop through results
if ($row['selection']=='eur/usd')// TO RETRIEVE BID AND OFFER FOR EACH ROW
{
$bidpricepl=$bid;
$offerpricepl=$bid1;
}
elseif ($row['selection']=='usd/jpy')
{
$bidpricepl=$bid2;
$offerpricepl=$bid3;
}
elseif ($row['selection']=='usd/cad')
{
$bidpricepl=$bid4;
$offerpricepl=$bid5;
}
elseif ($row['selection']=='eur/jpy')
{
$bidpricepl=$bid6;
$offerpricepl=$bid7;
}
elseif ($row['selection']=='eur/chf')
{
$bidpricepl=$bid8;
$offerpricepl=$bid9;
}
elseif ($row['selection']=='gbp/usd')
{
$bidpricepl=$bid10;
$offerpricepl=$bid11;
}
elseif ($row['selection']=='aud/usd')
{
$bidpricepl=$bid12;
$offerpricepl=$bid13;
}
elseif ($row['selection']=='usd/chf')
{
$bidpricepl=$bid14;
$offerpricepl=$bid15;
}
if ($row['type']=="buy")
{
//$last3charsoffer = substr($row['offerprice'], -6);
//$offernodecimal = str_replace('.', '', $last3charsoffer);
//$last3charsoffer1 = substr($offerpricepl, -6);
//$offernodecimal1 = str_replace('.', '', $last3charsoffer1);
//$pips2 = ltrim($pips2, '0');
//$calcpips2=$calcpips/$minipipskiller;
//$last3charsoffer = substr($row['offerprice'], -6);
//$offernodecimal = str_replace('.', '', $last3charsoffer);
//$last3charsoffer1 = substr($offerpricepl, -6);
//$offernodecimal1 = str_replace('.', '', $last3charsoffer1);
//$minipipskiller='10';
//$offeropen=$row['offerprice'];// to define variable
//$pips=$offerpricepl-$offeropen;// to calculate difference STEP 1
//$calcpips = str_replace('.', '', $pips); //removing the deci
//$calcpips = ltrim($calcpips, '0');// remove zeros in front
//$calcpips2=$calcpips/$minipipskiller;// to divide by 10 to cut mini pips
$minipipskiller='10';
$offeropen=$row['offerprice'];
$pips=$offerpricepl-$offeropen;
$closedb=$offerpricepl;
$pips1=round($pips, 6);
$pips2 = str_replace('.', '', $pips1);
if ($pips2<0)
{
$pips2 = str_replace('-', '', $pips2);
$pips2 = ltrim($pips2, '0');
$pips2 = -1 * abs($pips2);
}
else {
$pips2 = ltrim($pips2, '0');
}
$pips3=$pips2/$minipipskiller;
}// PIP COUNTING
elseif ($row['type']=="sell")//FOR PIP COUNTING
{
//$last3charsbid = substr($row['bidprice'], -6);
//$bidnodecimal = str_replace('.', '', $last3charsbid);
//$last3charsbid1 = substr($bidpricepl, -6);
//$bidnodecimal1 = str_replace('.', '', $last3charsbid1);
$minipipskiller='10';
$bidopen=$row['bidprice'];
$pips=$bidopen-$bidpricepl;
$closedb=$bidpricepl;
$pips1=round($pips, 6);
$pips2 = str_replace('.', '', $pips1);
if ($pips2<0)
{
$pips2 = str_replace('-', '', $pips2);
$pips2 = ltrim($pips2, '0');
$pips2 = -1 * abs($pips2);
}
else {
$pips2 = ltrim($pips2, '0');
}
$pips3=$pips2/$minipipskiller;
}
//echo $pips3;
$ticksize= "0.0001";// FOR PROFIT AND LOSS
$lot1 = "100000";
$sizecalc=$row['size'] * $lot1;
if ($row['type']=="buy")
{
$profitandloss=$sizecalc*$ticksize*$pips3; //per TRADE
}
if ($row['type']=="sell")
{
$profitandloss=$sizecalc*$ticksize*$pips3; //per TRADE
}
//echo $lot1;
//echo $ticksize;
number_format($profitandloss, 2);
echo "<tr><td>" . $row['trade_id'] .
"</td><td>" . $row['selection'] .
"</td><td>" . $row['date'] .
"</td><td>" . $row['type'] .
"</td><td>" . $row['size'] .
"</td><td>" . $row['bidprice'] .
"</td><td>" . $row['offerprice'] .
"</td><td>" . $row['stoploss'] .
"</td><td>" . $row['takeprofit'] .
"</td><td>" . $closedb .
"</td><td>" . $profitandloss .
"</td><td><a href ='delete.php?id=".
$row['trade_id']."'>X</a>
</td></tr>";
}
function callvariable($closedb,$profitandloss)
{
$variable=array('$closedb','$profitandloss');
return $variable;
}
SQL
<?php
require_once('connect.php');
require_once 'refreshable.php';
require_once "../core/init.php";
require_once 'query.php';
$trade_id= $_GET['id'];
date_default_timezone_set("Asia/Singapore");
$date = date('m/d/Y h:i:s a', time());
$timezone = date_default_timezone_get();
$userid=$user_data['user_id'];
$var=callvariable($closedb,$profitandloss);
$mysqli = new mysqli($database_hostname, $database_username, $database_password, $database_name) or exit("Error connecting to database");
try {
// First of all, let's begin a transaction
$mysqli->autocommit(FALSE);
// A set of queries; if one fails, an exception should be thrown
$mysqli->query("INSERT INTO `trade_history1` (user_id, trade_id, selection, date, type, size, bidprice, offerprice, stoploss, takeprofit,dateclose,close,profitandloss)
SELECT user_id, trade_id, selection, date, type, size, bidprice, offerprice, stoploss, takeprofit, 'null','null','null'
FROM `opentrades`
WHERE `trade_id` = " . $trade_id);
$mysqli-> query("UPDATE `trade_history1` SET `dateclose` = CURRENT_TIMESTAMP,
`close` = '{$closedb}',
`profitandloss` = '{$profitandloss}'
WHERE `trade_id`= ".$trade_id);
$mysqli->query("DELETE FROM `opentrades` WHERE `trade_id` = '$trade_id'");
$mysqli->query("UPDATE `users` SET `balance` = '{$balance}' WHERE `user_id` =".$userid);
// If we arrive here, it means that no exception was thrown
// i.e. no query has failed, and we can commit the transaction
$mysqli->commit();
$_SESSION['message'] = 'Successfully deleted';
} catch (Exception $e) {
// An exception has been thrown
// We must rollback the transaction
$_SESSION['message'] = 'Unable to delete';
$mysqli->rollback();
}
$mysqli->close();
header('location:test.php');
?>