我需要从 mysql 表中获取多行或单行，但我的代码仅从表中检索数据，如我的 where 子句条件为 true 中给出的多行，即使我的条件为 true，也不会获取单行。请向我推荐任何人。 (我只懂一点英语)
<?php
include 'connection/db_connection.php';
$sqlquery=mysql_query("select * from sadmin_invoiceno order by sno desc");
$row1=mysql_fetch_assoc($sqlquery);
$invoice=$row1['invoice_no'];
/* if($row1['invoice_no']<=9)
{
$myvalue=$row1['invoice_no'];
$idvalue="".$myvalue;
}
if($row1['invoice_no']>9 && $row1['sno']<100)
{
$myvalue=$row1['invoice_no'];
$idvalue="".$myvalue;
} */
$sql="SELECT * FROM sadmin_sales where invoice_no='".$invoice."'";
$result = mysql_query($sql);
$count=mysql_num_rows($result);
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>IT Flower invoice</title>
<link rel="stylesheet" href="assets/css/style_popup.css" media="all" />
<link href="assets/css/utopia-white.css" rel="stylesheet">
</head>
<body>
<div class="invoice">
<header class="clearfix">
<div id="logo">
<img src="assets/img/utopia-logo1.png">
</div>
<div id="company">
<h2 class="name">Indian Traditional Flowers</h2>
<div>10 - 3500 McNicoll Ave., <br>Toronto, Ontario ON M1V 4c7</div>
<div>+1.647.836.9999</div>
<div><a href="mailto:info@itflowers.com">info@itflowers.com</a></div>
</div>
</header>
<main>
<div id="details" class="clearfix">
<div id="client">
<div class="to">INVOICE TO:</div>
<h2 class="name"><?php
$sql2=mysql_query("SELECT franchies, customer FROM sadmin_sales where invoice_no='".$invoice."'");
$res1=mysql_fetch_array($sql2);echo $res1['customer'];
$franchies= $res1['franchies'];
$sql3=mysql_query("SELECT * FROM sadmin_customer where email='".$franchies."'");
$res2=mysql_fetch_array($sql3);
echo $res2['shop_name'];
?></h2>
<div class="address"> <?php echo $res2['owner_name']; ?> </div>
<div class="address"><?php echo $res2['address']; ?></div>
<div class="email"><?php echo $res2['email']; ?></div>
<div class="email"><?php echo $res2['phone']; ?></div>
</div>
<div id="invoice">
<h1>INVOICE NO: <?php echo $invoice; ?></h1>
<div class="date">Date of Invoice: <?php echo $date = date('d/m/Y h:i:s a'); ; ?></div>
</div>
</div>
<table class="inventory" border="0" cellspacing="0" cellpadding="0">
<thead>
<tr style="text-align: center;">
<th class="no">#</th>
<th class="desc">DESCRIPTION</th>
<th class="unit">UNIT PRICE</th>
<th class="qty">QUANTITY</th>
<th class="total">TOTAL</th>
</tr>
</thead>
<tbody>
<tr>
<?php
$tax=0;
$ship=0;
$paid=0;
$bal=0;
$grand=0;
$sum=0;
for($i=1; $i<$count;)
{
while($row = mysql_fetch_array($result))
{
$franchies = $row['franchies'];
echo "<td class='no'>".$i."</td> ";
echo "<td class='desc'>" . $row['product_name'] . "</td>";
echo "<td class='unit'>" . $row['unit_price'] . "</td>";
echo "<td class='qty'>" . $row['quantity'] . "</td>";
echo "<td class='total' >".$row['total']."</td>";
echo "</tr>";
$sum=$sum + $row['total'];
$i++;
//$tax=$sum *.13;
$include=$row['tax_type'];
if ($include =='includetax')
{
$tax1=mysql_query("select * from sadmin_tax where tax_type like 'include%'");
$res1=mysql_fetch_array($tax1);
$tax2=$res1['percentage'];
$tax=$sum * $tax2/100;
$sum1=$sum - $tax;
}
else
{
$tax3=mysql_query("select * from sadmin_tax where tax_type like 'exclude%'");
$res3=mysql_fetch_array($tax3);
$tax4=$res3['percentage'];
$tax=$sum * $tax4/100;
$sum1=$sum + $tax;
}
$ship=$row['shipping_amt'];
$paid=$row['paid_amt'];
$grand=$sum1 + $ship;
$bal=$grand - $paid;
}
}
?>
</tbody>
<tfoot>
<tr>
<td colspan="2"></td>
<td colspan="2">SUBTOTAL</td>
<td>$ <?php echo $sum; ?></td>
</tr>
<tr>
<td colspan="2"></td>
<td colspan="2">TAX 13%</td>
<td>$ <?php echo $tax; ?></td>
</tr>
<tr>
<td colspan="2"></td>
<td colspan="2">SHIP</td>
<td>$<?php echo $ship; ?></td>
</tr>
<tr>
<td colspan="2"></td>
<td colspan="2">PAID</td>
<td>$<?php echo $paid; ?></td>
</tr>
<tr>
<td colspan="2"></td>
<td colspan="2">BALANCE</td>
<td>$<?php echo $bal; ?></td>
</tr>
<tr>
<td colspan="2"></td>
<td colspan="2">GRAND TOTAL</td>
<td>$<?php echo $grand; ?></td>
</tr>
</tfoot>
</table>
<button onclick="myFunction()" class="btn btn-primary" style="width: 106px;float: right;">Print this page</button>
<!-- <div id="thanks">Thank you!</div>
<div id="notices">
<div>NOTICE:</div>
<div class="notice">A finance charge of 1.5% will be made on unpaid balances after 30 days.</div>
</div>
</main>
<footer>
Invoice was created on a computer and is valid without the signature and seal.
</footer> -->
</div>
<script>
function myFunction() {
window.print();
}
</script>
</body>
</html>
最佳答案
我不确定我完全理解你的问题，你是说你有多行但只想要一行？
如果是这样，请检查 MySQL“LIMIT”，它会将您的 SQL 查询限制为 X 行数，例如 SELECT * FROM sadmin_customer where email='".$franchies."限制1
这将仅返回 1 行，即条件为 true 的第一行。
关于php - mysql_fetch_array()，在我的程序中不起作用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/28087643/