[英]MYSQL PHP update db table information through html form
Thanks in advance. 提前致谢。
I am trying to update information in my db but am having no luck and no error messages. 我正在尝试更新数据库中的信息,但是没有运气,也没有错误消息。
Here is the page code (the pid or post_id is in the URL): 这是页面代码(pid或post_id在URL中):
<?php
include('page with functions.php');
if (isset($_GET['pid'], $_POST['title'], $_POST['body'])){
if (edit_post($_GET['pid'], $_POST['title'], $_POST['body'])){
header("Location: blog_edit.php?pid={$_GET['pid']}");
}else{
header("Location: some location.php");
}
die();
}
?>
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Blog Edit</title>
</head>
<body>
<div>
<?php
if (isset($_GET['pid']) ===false || valid_pid($_GET['pid']) === false){
echo 'Invalid post ID';
}else{
$post = get_post($_GET['pid']);
?>
<h2><?php echo $post['title']; ?></h2>
<hr />
<p><?php echo $post['body']; ?></p>
<hr />
<form action="" method="post">
<p>
<label for="title">Title</label>
<input type="text" name="title" id="title" value="<?php echo $post['title']; ?>"/>
</p>
<p>
<textarea name="body" rows="20" cols="60"><?php echo $post['body']; ?></textarea>
</p>
<p>
<input type="submit" value="Edit Post" />
</p>
</form>
<?php
}
?>
</div>
</body>
</html>
Here is the function (the pid or post_id is in the URL): 这是函数(URL中的pid或post_id):
// edits a blog entry
function edit_post($title, $body){
$title = mysql_real_escape_string(htmlentities($title));
$body = mysql_real_escape_string(nl2br(htmlentities($body)));
mysql_query("UPDATE `posts` (`post_title`, `post_body`) SET `post_title` = '{$title}' AND `post_body` = '{body}' WHERE `post_id` = {$pid}");
}
Any help would be great thanks! 任何帮助将非常感谢! FYI I am new to PHP MYSQL so please be kind. 仅供参考,我是PHP MYSQL的新手,所以请客气。
if (edit_post($_GET['pid'], $_POST['title'], $_POST['body'])){
header("Location: blog_edit.php?pid={$_GET['pid']}");
}else{
header("Location: some location.php");
}
You're passing three arguments in the function call, but the function definition has only 2 arguments. 您在函数调用中传递了三个参数,但是函数定义只有两个参数。
function edit_post($title, $body){
$title = mysql_real_escape_string(htmlentities($title));
$body = mysql_real_escape_string(nl2br(htmlentities($body)));
mysql_query("UPDATE `posts` (`post_title`, `post_body`) SET `post_title` = '{$title}' AND `post_body` = '{body}' WHERE `post_id` = {$pid}");
}
Also, return a boolean from the function. 同样,从函数返回一个布尔值。
function edit_post($pid, $title, $body){
$title = mysql_real_escape_string(htmlentities($title));
$body = mysql_real_escape_string(nl2br(htmlentities($body)));
$result = mysql_query("UPDATE `posts` (`post_title`, `post_body`) SET `post_title` = '{$title}' AND `post_body` = '{body}' WHERE `post_id` = {$pid}");
echo $result;
}
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