先对要根据id值找到修改的信息并进行一个遍历展示 alter.php
<?php
include('./conn.php');
?>
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<meta charset="utf-8">
<body>
<?php
$id = $_GET['id'];
$sql = "select *from news where id = $id ";
$res = mysqli_query($conn,$sql);
$row = mysqli_fetch_assoc($res);
// echo $id;
echo '<form action="alter_add.php?id='.$id.'" method="post">';
echo '<table cellpadding="0" cellspacing="0">';
echo '<tr>';
echo '<td class="leftlable">标题';
echo '</td>';
echo '<td>';
echo '<input type="text" name="title" value="'.$row['title'].'">';
echo '</td>';
echo '</tr>';
echo '<tr>';
echo '<td class="leftlable">作者';
echo '</td>';
echo '<td>';
echo '<input type="text" name="autor" value="'.$row['autor'].'">';
echo ' </td>';
echo '</tr>';
echo '<tr>';
echo '<td class="leftlable">来源';
echo '</td>';
echo '<td>';
echo '<input type="text" name="source" value="'.$row['source'].'">';
echo '</td>';
echo '</tr>';
echo '<tr>';
echo '<td class="leftlable">内容';
echo '</td>';
echo '<td>';
echo '<textarea name="content" id="tbcontent" rows="10" cols="25" >';
echo $row['content'];
echo '</textarea>';
echo' </td>';
echo' </tr>';
echo '<tr>';
echo '<td class="leftlable"> ';
echo '</td>';
echo '<td>';
echo '<input type="submit" id="btnsave" value="修改">';
echo '</td>';
echo '</tr>';
?>
</table>
</form>
</body>
</html>
之后进行对应项目的修改操作： alter_add.php
<?php
// header('Content-type:text/html;charset=utf-8');
// $conn = @mysqli_connect('localhost','root','123456','itsource');
include('./conn.php');
mysqli_query($conn,'set names utf8');
$title = $_POST['title'];
$autor = $_POST['autor'];
$source = $_POST['source'];
$content = $_POST['content'];
// echo $title.$autor.$source.$content;
$id=$_GET['id'];
// (title,autor,source,content) values ('$title' ,'$autor','$source','$content')";
// echo $autor;
// echo $source;
// echo $content;
// echo $id;
$sql = "update news set title = $title ,autor = $autor, source = $source ,content = $content where id = $id";
$res = mysqli_query($conn,$sql);
if($res)
{
echo '<script>alert("恭喜你，修改成功"); location.href="list.php"</script>';
}else {
echo '<script>alert("修改失败");</script>'.mysql_error($conn);
}
echo '<a href="save.html">返回</a>';
?>
