php学生管理系统

getMessage(); die('connection failed'.$e->getMessage()); }

//2.action 的值做对操作

switch ($_GET['action']){

case 'add'://add
$name = $_POST['name'];
$sex = $_POST['sex'];
$age = $_POST['age'];
$classid = $_POST['classid'];

$sql = "insert into stu (name,sex,age,classid) values ('{$name}','{$sex}','{$age}','{$classid}')";
$rw = $pdo->exec($sql);
if ($rw > 0){
echo "";
}else{
echo "";
}
header('Location: index.php');
break;

case 'del'://get
$id = $_GET['id'];
$sql = "delete from stu where id={$id}";
$rw = $pdo->exec($sql);
if ($rw > 0){
echo "";
}else{
echo "";
}
header('Location: index.php');
break;

case 'edit'://post
$id = $_POST['id'];
$name = $_POST['name'];
$age = $_POST['age'];
$classid = $_POST['classid'];
$sex = $_POST['sex'];

// echo $id,$age,$name;
$sql = "update stu set name='{$name}',age={$age},sex='{$sex}',classid={$classid} where id={$id};";
// $sql = "update myapp.stu set name='jike',sex='女',age=24,classid=44 where id=17";
print $sql;
$rw = $pdo->exec($sql);
if ($rw > 0){
echo "";
}else{
echo "";
}
header('Location: index.php');
break;

default:
header('Location: index.php');
break;
}

4.edit.php

学生管理系统 getMessage()); } //2.执行sql $sql_select = "select * from stu where id={$_GET['id']}"; $stmt = $pdo->query($sql_select); if ($stmt->rowCount() >0) { $stu = $stmt->fetch(PDO::FETCH_ASSOC); // 解析数据 }else{ die("no have this id:{$_GET['id']}"); } ?>

修改学生信息

<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>年龄</td>
<td><input type="text" name="age" value="<?php echo $stu['age'];?>"></td>
</tr>
<tr>
<td>性别</td>
<td>
<input type="radio" name="sex" value="男" <?php echo ($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>班级</td>
<td><input type="text" name="classid" value="<?php echo $stu['classid']?>"></td>
</tr>
<tr>
<td></td>
<td><input type="submit" value="更新"></td>
<td><input type="reset" value="重置"></td>
</tr>
</table>

<?php
?>

5. menu.php

学生管理系统

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