我试图从MySql数据库中检索一个表,但我的代码返回了错误的数据。这是我的代码
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "net_trade";
// Create connection
$conn = mysqli_connect($servername, $username, $password, $dbname);
// Check connection
if (mysqli_connect_errno()) {
die("Connection failed: " . mysqli_connect_error());
}
echo "<link rel='stylesheet' type='text/css' href='style.css'>";
echo "<h1>NET TRADE</h1>";
echo "<div align='center'>";
echo "<ul>";
echo "<li><a class='nav' href='inventory.php'>INVENTORY</a></li>";
echo "<li><a class='nav' href='supplier.php'>SUPPLIER</a></li>";
echo "<li><a class='nav' href='customer.php'>CUSTOMER</a></li>";
echo "<li><a class='nav' href='sales.php'>SALES</a></li>";
echo "</ul>";
echo "</div>";
echo "<form method='POST' action='create_supplier.html'>
<input type='SUBMIT' class='style19' name='new_item' value='Add New Item'></form>";
echo "<table class='TFtable'>";
echo "<tr>";
echo "<th>ID</th>";
echo "<th>Quantity</th>";
echo "<th>Name</th>";
echo "<th>Brand</th>";
echo "<th>Model</th>";
echo "<th>Serial</th>";
echo "<th>Date Supplied</th>";
echo "<th>Supplier</th>";
echo "</tr>";
$result = mysqli_query($conn, "SELECT * FROM inventory");
if (mysqli_num_rows($result) > 0) {
while($row = mysqli_fetch_array($result, MYSQLI_NUM)) {
echo "<tr>";
echo "<td>".$row['0']."</td>";
echo "<td>".$row['1']."</td>";
echo "<td><a href='edit.php?id=".$row['0'].">".$row['2']."</a></td>";
echo "<td>".$row['3']."</td>";
echo "<td>".$row['4']."</td>";
echo "<td>".$row['5']."</td>";
echo "<td>".$row['6']."</td>";
echo "<td>".$row['7']."</td>";
echo "</tr>";
}
mysqli_free_result($result);
}else {
echo "0 results";
}
mysqli_close($conn);
echo "</table>";
?>
结果应该是这个......
但是我的代码会返回类似的内容..
结果从数据库表中跳过一行..这就是我的主要问题
答案 0 :(得分:0)
我相信这一行在您的代码中已经过时了。
echo "<td><a href='edit.php?id=".$row['0'].">".$row['2']."</a></td>";
你需要注意到href中匹配的双引号,这就是这个。
<td><a href="edit.php?id=12345">asd</a></td>
我认为你得到的是这个。
<td><a href='edit.php?id=12345>asd</a></td>
请注意,您的href是以单引号启动的(Web浏览器可以容忍,但不是标准的),并且没有结束。
您可能希望代码看起来像这样。字符串连接不容易阅读,因此sprintf()
可以更好地构成这种链接标记。
echo sprintf ('<td><a href="edit.php?id=%d>%s</a></td>', $row[0], $row[2]);
专业提示:当结果奇怪时,请务必查看来源。