Let’s look at the code directly
<?php
header("Content-type: text/html; charset=utf-8");//设置编码
require_once('conn.php');
$id = $_GET['id'];
$sql = "SELECT * FROM about where id='$id'";
$res = mysql_query($sql);
$row = mysql_fetch_array($res);
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>修改信息</title>
<style type="text/css">
.ipt{width:180px;height:30px;border-radius:5px;
outline:none;border:1px solid #eee;box-sizing:border-box;padding-left:15px;}
.sub{width:50px;height:20px;border:1px solid #eee;background:#eee;color:#ff7575;}
</style>
</head>
<body>
<form method="post" action="modifyabout.php?id=<?php echo $id;?>">
标题：<input type="text" name="title" class="ipt" value="<?php echo $row['title'];?>">
</br></br>
内容：<textarea cols="80" rows="10" name="content" class="txt"><?php echo $row['content'];?></textarea></br></br>
<input type="submit" value="修改" class="sub">
</form>
</body>
</html>Processing the modified page modifyabout.php
Let’s look at the code for the following modified page:
<?php
require_once('conn.php');
$id = $_GET['id'];
$title = $_POST['title'];
$content = $_POST['content'];
$sql = "UPDATE about SET title='$title',content='$content' where id='$id'";
$res = mysql_query($sql);
if($res){
echo "<script>alert('修改信息成功');location.href='about.php'</script>";
}else{
echo "<script>alert('修改信息失败');history.go(-1);</script>";
}
?>
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