Modification of PHP development student management tutorial
Create edit.php modify file
The functional process is as follows
The code is as follows
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>學(xué)生管理系統(tǒng)</title>
</head>
<body>
<?php include ('menu.php');
//1. 鏈接數(shù)據(jù)庫
header("content-type:text/html;charset=utf8");
$conn=mysqli_connect("localhost","root","root","study");
mysqli_set_charset($conn,"utf8");
$id=$_GET['id'];
//2.執(zhí)行sql
$sql_select = "select * from stu where id='$id'";
$stmt = mysqli_query($conn,$sql_select);
// var_dump($stmt);
// die();
$stu = mysqli_fetch_assoc($stmt); // 解析數(shù)據(jù)
?>
<h3>修改學(xué)生信息</h3>
<form action="action.php?action=edit" method="post">
<input type="hidden" name="id" value="<?php echo $stu['id'];?>">
<table>
<tr>
<td>姓名</td>
<td><input type="text" name="name" value="<?php echo $stu['name'];?>"></td>
</tr>
<tr>
<td>年齡</td>
<td><input type="text" name="age" value="<?php echo $stu['age'];?>"></td>
</tr>
<tr>
<td>性別</td>
<td>
<input type="radio" name="sex" value="男" <?php echo ($stu['sex'] == "男")? "checked":"";?> >男
</td>
<td>
<input type="radio" name="sex" value="女" <?php echo ($stu['sex'] == "女")? "checked":"";?> >女
</td>
</tr>
<tr>
<td>班級</td>
<td><input type="text" name="class" value="<?php echo $stu['class']?>"></td>
</tr>
<tr>
<td> </td>
<td><input type="submit" value="修改"></td>
<td><input type="reset" value="重置"></td>
</tr>
</table>
</form>
<?php
?>
</body>
</html>
