我无法想出这个。我环顾四周,在这里和其他地方,他们似乎都在一个非常圆的方式解决这个问题。我已经创建了一个删除成员的页面。用户键入用户名,单击选择并从数据库中检索特定记录。然后,用户可以单击删除按钮并删除用户。我遇到的问题是删除部分不起作用。这是html:
<?php
require_once('../include/officer_session_timeout_db.inc.php');
if (isset($_POST['viewmember'])) {
$username = trim($_POST['username']);
require_once('../include/viewmember.inc.php');
}
?>
以上部分工作正常。这只是删除部分无效。
<?php
if (isset($_POST['delete'])) {
require_once('../include/deletemember.inc.php');
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org /TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
</head>
<body>
<div id="MainContentBox">
<Div id="MainContentTitle">DELETE A MEMBER!!!!<br>
<div id="MainContentText">
<form id="viewmember" method="post" action="">
User Name: <input type="text" name="username" id="username">
<input name="viewmember" type="submit" id="viewmember" value="Search">
</form>
<?php echo $firstname;?> <?php echo $lastname;?>
<fieldset style="width:500px">
<legend>Address</legend>
<?php echo $address;?><br>
<?php echo $city;?><br>
<?php echo $state;?> , <?php echo $zip;?>
</fieldset>
<fieldset style="width:500px">
<legend>Contact Information</legend>
E-Mail:<a href="mailto:<?php echo $email;?>"><?php echo $email;?></a> <br>
Home Phone: <?php echo $homephone;?><br>
Cell Phone: <?php echo $cellphone;?><br>
</fieldset>
<?php
if (isset($success)) {
echo "<p>$success</p>";
} elseif (isset($errors) && !empty($errors)) {
echo '<ul>';
foreach ($errors as $error) {
echo "<li>$error</li>";
}
echo '</ul>';
}
?>
<form id="delete" method="post" action="">
<input name="delete" type="submit" id="delete" value="DELETE MEMBER!!!!">
</form>
</div>
</div>
</body>
以下是deletemember.inc.php文件的代码:
<?php
require_once('connection.inc.php');
$conn = dbConnect('write');
// prepare SQL statement
$sql = "DELETE FROM members WHERE username='$username'";
$stmt = $conn->stmt_init();
$stmt = $conn->prepare($sql);
// bind parameters and insert the details into the database
$stmt->bind_param('s', $username);
$stmt->execute();
if ($stmt->affected_rows == 1) {
$success = "Your information has been updated.";
} else {
$errors[] = 'Sorry, there was a problem with the database.';
}
答案 0 :(得分:1)
使用'?'标记要绑定的参数。试试这个:
$sql = "DELETE FROM members WHERE username=?";
$stmt = $conn->stmt_init();
$stmt = $conn->prepare($sql);
// bind parameters and insert the details into the database
$stmt->bind_param('s', $username);
mysqli需要知道查询中要绑定参数的位置,因此您使用?
标记每个替换。查看bind_param文档以获取更多信息和示例:http://php.net/manual/en/mysqli-stmt.bind-param.php
答案 1 :(得分:1)
我不知道参数的位置是什么。
param&#39;不存在,所以,你不需要绑定它们。