首先感谢您关注我的问题。这在某种程度上是我的第一个MySql/PHP项目之一，我想知道是否有办法压缩我创建的这两个页面。
基本上，我有一个MySql数据库，里面有一些伪填充信息。我创建了一个显示信息的php页面：
<?php
// Connect to server and select database.
$link = mysqli_connect("localhost", "root", "password", "testdelete"); //for local machine testing
// Check connection
if($link === false){
die("ERROR: Could not connect. " . mysqli_connect_error());
}
// select record from mysql
$sql = "SELECT id, name, lastname, email FROM testdelete.test_mysql";
$result = $link->query($sql);
if ($result->num_rows > 0) {
include 'table_header.html';
// output data of each row
while($row = $result->fetch_assoc()) {
echo "<tr>";
echo "<td bgcolor='"#FFFFFF'">".$row["id"]."</td>";
echo "<td bgcolor='"#FFFFFF'">". $row["name"]."</td>";
echo "<td bgcolor='"#FFFFFF'">" . $row["lastname"]."</td>";
echo "<td bgcolor='"#FFFFFF'">". $row["email"] . "</td>";
echo "<td bgcolor='"#FFFFFF'"><a href='"test_delete_ac.php?id={$row['id']}'">Delete row</a></td>";
echo "</tr>";
}
include 'table_footer.html';
} else {
echo "0 results";
}
// close connection
mysqli_close($link);
?>
根据代码示例，每行数据都会显示，并且有一列用于删除按钮，因此我可以在需要时删除一行。然而，它现在的设置方式是调用一个辅助页面"test_delete_ac.php"，如下所示：
<?php
// Connect to server and select database.
$link = mysqli_connect("localhost", "root", "password", "testdelete"); //for local machine testing
// Check connection
if($link === false){
die("ERROR: Could not connect. " . mysqli_connect_error());
}
// select record from mysql
//$sql = "SELECT id, name, lastname, email FROM testdelete.test_mysql";
//$result = $link->query($sql);
// get value of id that sent from address bar
$id=$_GET['id'];
// Delete data in mysql from row that has this id
$sql="DELETE FROM testdelete.test_mysql WHERE id='$id'";
$result=$link->query($sql);
// if successfully deleted
if($result){
echo "Deleted Successfully";
echo "<BR>";
echo "<a href='delete.php'>Back to main page</a>";
}
else {
echo "ERROR";
}
// close connection
mysqli_close($link);
?>
一个是为了可用性，我想限制它进入第二个页面，并且必须单击"返回"链接。第二，我可以创建一个函数并从链接中调用它来删除行并仍然显示表单吗？就像页面重新加载什么的？
提前感谢你们中的任何人能够提供的任何重定向。
-Kate
是的，只需在select语句上方包含delete逻辑即可。
<?php
// Connect to server and select database.
$link = mysqli_connect("localhost", "root", "password", "testdelete"); //for local machine testing
// Check connection
if ($link === false){
die("ERROR: Could not connect. " . mysqli_connect_error());
}
// Handle delete
if (isset($_GET['delete_id'])) {
// get value of id that sent from address bar
$delete_id = (int) $_GET['delete_id'];
// Delete data in mysql from row that has this id
$sql="DELETE FROM testdelete.test_mysql WHERE id='$delete_id'";
$result=$link->query($sql);
// if successfully deleted
if ($result){
echo "Deleted Successfully";
echo "<BR>";
} else {
echo "Delete ERROR";
}
}
// select record from mysql
$sql = "SELECT id, name, lastname, email FROM testdelete.test_mysql";
$result = $link->query($sql);
if ($result->num_rows > 0) {
include 'table_header.html';
// output data of each row
while($row = $result->fetch_assoc()) {
echo "<tr>";
echo "<td bgcolor='"#FFFFFF'">".$row["id"]."</td>";
echo "<td bgcolor='"#FFFFFF'">". $row["name"]."</td>";
echo "<td bgcolor='"#FFFFFF'">" . $row["lastname"]."</td>";
echo "<td bgcolor='"#FFFFFF'">". $row["email"] . "</td>";
echo "<td bgcolor='"#FFFFFF'"><a href='"?delete_id={$row['id']}'">Delete row</a></td>";
echo "</tr>";
}
include 'table_footer.html';
} else {
echo "0 results";
}
// close connection
mysqli_close($link);
?>
不过，使用这种方法要小心。因为它只是一个链接，如果它是公共的，机器人可以抓取和删除所有内容。
此外，请注意还有一些其他变化。我将参数从id更改为delete_id，只是为了避免歧义。我更新了删除链接。在运行删除查询之前，我正在检查$_GET['delete_id']是否已设置。并且，我对$_GET['delete_id']进行强制转换（int），以确保它实际上是一个整数。
您应该更换
echo "<td bgcolor='"#FFFFFF'">
<a href='"test_delete_ac.php?id={$row['id']}'">Delete row</a>
</td>";
使用此选项，但将current_page.php替换为有列表的页面。：
echo "<td bgcolor='"#FFFFFF'">
<a href='"current_page.php?parem=delete&id={$row['id']}'">Delete row</a>
</td>";
并将其放在连接下方的列表页面顶部
<?php
if(isset($_GET['parem']) && $_GET['parem']=="delete"){
$id=$_GET['id'];
// Delete data in mysql from row that has this id
$sql="DELETE FROM testdelete.test_mysql WHERE id='$id'";
$result=$link->query($sql);
// if successfully deleted
if($result){
//redirect of the list page it is recommended// so use location to redirect to the list page
}else {
echo "ERROR";
}
}
?>
// put the list code over here.
除了这些尽量避免这样的事情，这不是一个好的做法。我建议使用class。
Replace <td bgcolor='"#FFFFFF'"> </td> with <td class='bgColor'> </td>