Operasi pangkal...LOGIN

Operasi pangkalan data tutorial pengurusan pelajar pembangunan PHP

Buat fail action.php

Fail ini menggunakan penyataan suis dan kes untuk memproses data seperti pemadaman, pengubahsuaian dan penambahan pada halaman yang sama, pertindihan kod dikurangkan

5.jpg

Kod adalah seperti berikut

<?php
header("content-type:text/html;charset=utf8");
$conn=mysqli_connect("localhost","root","root","study");
mysqli_set_charset($conn,"utf8");
if($conn){
    switch ($_GET['action']){
        case 'add'://add
            $name = $_POST['name'];
            $sex = $_POST['sex'];
            $age = $_POST['age'];
            $class = $_POST['class'];
            $sql = "insert into stu (`name`, sex, age, class) values ('$name', '$sex','$age','$class')";
            $rw = mysqli_query($conn,$sql);
            if ($rw > 0){
                echo "<script>alert('添加成功');</script>";
            }else{
                echo "<script>alert('添加失败');</script>";
            }
            header('Location: index.php');
            break;
        case 'del'://get
            $id = $_GET['id'];
            $sql = "delete from stu where id='$id'";
            $rw = mysqli_query($conn,$sql);
            if ($rw > 0){
                echo "<script>alert('删除成功');</script>";
            }else{
                echo "<script>alert('删除失败');</script>";
            }
            header('Location: index.php');
            break;
        case 'edit'://post
            $id = $_POST['id'];
            $name = $_POST['name'];
            $age = $_POST['age'];
            $class = $_POST['class'];
            $sex = $_POST['sex'];
//    echo $id, $age, $age, $name;
            $sql = "update stu set name='$name', age='$age',sex='$sex',class='$class' where id='$id';";
//    $sql = "update myapp.stu set name='jike',sex='女', age=24,classid=44 where id=17";
//            print $sql;
            $rw = mysqli_query($conn,$sql);
//            var_dump($rw);
//            die();
            if ($rw > 0){
                echo "<script>alert('更新成功');</script>";
            }else{
                echo "<script>alert('更新失败');</script>";
            }
            header('Location: index.php');
            break;
        default:
            header('Location: index.php');
            break;
    }
}else{
    die('数据库连接失败' .mysqli_connect_error());
}
?>






<?php header("content-type:text/html;charset=utf8"); $conn=mysqli_connect("localhost","root","root","study"); mysqli_set_charset($conn,"utf8"); if($conn){ switch ($_GET['action']){ case 'add'://add $name = $_POST['name']; $sex = $_POST['sex']; $age = $_POST['age']; $class = $_POST['class']; $sql = "insert into stu (`name`, sex, age, class) values ('$name', '$sex','$age','$class')"; $rw = mysqli_query($conn,$sql); if ($rw > 0){ echo "<script>alert('添加成功');</script>"; }else{ echo "<script>alert('添加失败');</script>"; } header('Location: index.php'); break; case 'del'://get $id = $_GET['id']; $sql = "delete from stu where id='$id'"; $rw = mysqli_query($conn,$sql); if ($rw > 0){ echo "<script>alert('删除成功');</script>"; }else{ echo "<script>alert('删除失败');</script>"; } header('Location: index.php'); break; case 'edit'://post $id = $_POST['id']; $name = $_POST['name']; $age = $_POST['age']; $class = $_POST['class']; $sex = $_POST['sex']; // echo $id, $age, $age, $name; $sql = "update stu set name='$name', age='$age',sex='$sex',class='$class' where id='$id';"; // $sql = "update myapp.stu set name='jike',sex='女', age=24,classid=44 where id=17"; // print $sql; $rw = mysqli_query($conn,$sql); // var_dump($rw); // die(); if ($rw > 0){ echo "<script>alert('更新成功');</script>"; }else{ echo "<script>alert('更新失败');</script>"; } header('Location: index.php'); break; default: header('Location: index.php'); break; } }else{ die('数据库连接失败' .mysqli_connect_error()); } ?>
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