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03.php
<?php
$conn=mysql_connect("localhost","root","111111");
mysql_query("set names utf8",$conn);//设置编码
mysql_query("use test1",$conn);//选库
$id=addslashes($_GET[‘id‘]);
$sql="select id,name,gender from stu where id=".$id;
$rs=mysql_query($sql,$conn);
$arr=mysql_fetch_array($rs);
?>
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>编辑</title>
</head>
<body>
<form action=<?php echo "04.php?id=".$id;?> method="post">
<table border=1 width="50%">
<tr>
<td>id</td>
<td><?php echo $arr["id"]; ?></td>
</tr>
<tr>
<td>name</td>
<td><input type="text" name="name" value="<?php echo $arr[‘name‘]?>"></td>
</tr>
<tr>
<td>gender</td>
<td><input type="text" name="gender" value="<?php echo $arr[‘gender‘]?>"></td>
</tr>
<tr>
<td colspan="2"><input type="submit" value="保存修改"></td>
</tr>
</table>
</form>
</body>
</html>
04.php
<?php
$conn=mysql_connect("localhost","root","111111");
mysql_query("set names utf8",$conn);//设置编码
mysql_query("use test1",$conn);//选库
$id=$_GET[‘id‘]+0;
$name=addslashes($_POST[‘name‘]);
$gender=addslashes($_POST[‘gender‘]);
$sql="update stu set name=‘".$name."‘,gender=‘".$gender."‘ where id=".$id;
$rs=mysql_query($sql,$conn);
if(mysql_affected_rows($conn)==0){
echo "修改失败,可能与原数据一样";
}else{
echo "修改成功";
}
echo "<a href=‘01.php‘>返回</a>";
?>
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原文地址：http://www.cnblogs.com/lzzhuany/p/4735173.html
