Question

我有这段代码：

<?php $res = $conn->query("SELECT * FROM users");
    //If the result of the query has more than 0 rows (1 or more) continue to the loop
    if(mysqli_num_rows($res) >0){
        //Loop to organise the data
        while($row = mysqli_fetch_array($res)){
            if($row['permission'] == "2"){
                 $perms = '<span class="label label-danger">Administrator</span>';
            } elseif($row['permission'] == "1"){
                 $perms = '<span class="label label-success">Registered User</span>';
            } else {
                 $perms = '<span class="label label-warning">Awaiting Approval</span>';
            }


            //Return the table data
            echo "<tr><td>" . $row['firstname'] . "</td><td>" . $row['surname'] . "</td><td>" . $row['email'] . "</td><td>" . $row['username'] . "</td><td>" . $row['telephone'] . "</td><td>" . $perms . "</td>";

        }
   }?>

我想要的是在新列中为每一行添加一个按钮，该行将激活一段代码以删除数据库中的记录。

想知道是否有人可以协助或指出我如何做到这一点的正确方向。最终，将有一个删除按钮和一个批准按钮，它将激活位于同一文件中的不同SQL代码。感谢

Answer 1

你可以这样做：插入一个带有发布表单的按钮，该表单将发送变量＆＃34; delete_id＆＃34;使用当前＆＃34;用户ID＆＃34;来自数据库。

在代码之上，如果通过帖子表单提供，则会发现删除此操作的操作...

它不是很安全，但我会添加一些安全检查，如：是号码？是有效的用户ID？什么是referal页面？ ...

<?php
if ( $_POST["delete_id"] ) {
    // This action will be performed after click on the Delete button.
    // Better make some security checks here
    $delete_id = htmlspecialchars($_POST["delete_id"]);
    $res = $conn->query("DELETE FROM `users` WHERE `id` = '$delete_id' LIMIT 1;");
}

$res = $conn->query("SELECT * FROM users");
//If the result of the query has more than 0 rows (1 or more) continue to the loop
if(mysqli_num_rows($res) >0){
    //Loop to organise the data
    while($row = mysqli_fetch_array($res)){
        if($row['permission'] == "2"){
            $perms = '<span class="label label-danger">Administrator</span>';
        } elseif($row['permission'] == "1"){
            $perms = '<span class="label label-success">Registered User</span>';
        } else {
            $perms = '<span class="label label-warning">Awaiting Approval</span>';
        }
        // Creates a button with POST variable "delete_id" and the value of the "user id"
        $button = '<form method="post" action="' . $_SERVER["PHP_SELF"] . '"><input type="hidden" name="delete_id" value="' . $row['id'] . '"><input type="submit" value="Delete this row"></form>';


        //Return the table data
        echo "<tr><td>" . $row['firstname'] . "</td><td>" . $row['surname'] . "</td><td>" . $row['email'] . "</td><td>" . $row['username'] . "</td><td>" . $row['telephone'] . "</td><td>" . $perms . "</td><td>" . $button . "</td>";
    }
}
?>

表中的按钮使用PHP / SQL循环

1 个答案: