<?php

header("Content-type:text/html;charset='utf8'");

error_reporting(E_ALL);

echo "模拟数据库常用操作效果<br>";

echo "<a href='check.php?action=add'>执行增加操作</a><br>";

echo "<a href='check.php?action=del'>执行删除操作</a><br>";

echo "<a href='check.php?action=search'>执行查找操作</a><br>";

echo "<a href='check.php?action=update'>执行更新操作</a><br>";

<?php

    if(isset($_GET['action'])){

        switch($_GET['action']){

            case "add":

                echo "<script>alert('add');</script>";

                break;

            case "del":

                echo "<script>alert('del');</script>";

                break;

            case "search":

                echo "<script>alert('search');</script>";

                break;

            case "update";

                echo "<script>alert('update');</script>";

                break;

            default:

                echo "<script>alert('error');</script>";

                break;

        }

        // echo "<script>window.location = 'test.php';</script>";

        echo "<script>history.go(-1);</script>";

    }