Question

我正在尝试为每条记录创建单独的链接。我有两个文件：

的index.php

 <?php

$connect = mysql_connect("localhost", "test", "pass");
if (!$connect) {
    die("Can not connect:" . mysql_error());
}

mysql_select_db("snippets", $connect);

$ID = ''; 
if( isset( $_GET['ID'])) {
    $ID = $_GET['ID']; 
} 


$sql = "SELECT * FROM lectures";
$myData = mysql_query($sql, $connect);

while($record = mysql_fetch_array($myData)) {
$ID = $record['ID'];
$Name = $record['Name'];

    echo "<div class=\"container\">";
    echo "<div class=\"row\">";
        echo "<div class=\"col-md-2\">";
            echo "<p>$record[ID]</p>";
        echo "</div>";
        echo "<div class=\"col-md-2\">";
            echo "<p>$record[Topic]</p>";
        echo "</div>";
        echo "<div class=\"col-md-2\">";
            echo "<p>$record[Name]</p>";
        echo "</div>";
        echo "<div class=\"col-md-2\">";
            echo "<p>$record[Attendance]</p>";
        echo "</div>";
        echo "<div class=\"col-md-2\" style=\"display:none;\">";
            echo "<p>$record[Topic]</p>";
        echo "</div>";
        echo "<div class=\"col-md-2\" style=\"\">";
            echo "<td> <a href='car.php?id=" . $ID . " '>" . $record['Name'] . "</a> </td>";
        echo "</div>";
    echo "</div>";
    echo "</div>";


}

mysql_close($connect);

?>

car.php

<?php

$connect = mysql_connect("localhost", "test", "pass");
if (!$connect) {
    die("Can not connect:" . mysql_error());
}

mysql_select_db("snippets", $connect);



$ID = ''; 
if( isset( $_GET['ID'])) {
    $ID = $_GET['ID']; 
} 

$sql = "SELECT * FROM lectures WHERE ID = '$ID' ";
$myData = mysql_query($sql, $connect);

while($record = mysql_fetch_array($myData)) {
$ID = $record['ID'];
$Name = $record['Name'];

    echo "<div class=\"container\">";
    echo "<div class=\"row\">";
        echo "<div class=\"col-md-2\">";
            echo "<p>$record[ID]</p>";
        echo "</div>";
        echo "<div class=\"col-md-2\">";
            echo "<p>$record[Topic]</p>";
        echo "</div>";
        echo "<div class=\"col-md-2\">";
            echo "<p>$record[Name]</p>";
        echo "</div>";
        echo "<div class=\"col-md-2\">";
            echo "<p>$record[Attendance]</p>";
        echo "</div>";
        echo "<div class=\"col-md-2\" style=\"display:none;\">";
            echo "<p>$record[Topic]</p>";
        echo "</div>";

    echo "</div>";
    echo "</div>";


}

mysql_close($connect);

?>

当我点击链接时，页面为空。如果我在ID = '2'中放置一个值（例如：2），它就可以了。但这将是所有链接的价值。

Answer 1

如果您在linux中工作，您应该在大写情况下编写ID param，因此您应该替换它：

echo "<td> <a href='car.php?id=" . $ID . " '>" . $record['Name'] . "</a> </td>";

由此：

echo "<td> <a href='car.php?ID=" . $ID . " '>" . $record['Name'] . "</a> </td>";

为每个单独的数据库记录创建链接

1 个答案: