Simulate the effects of common database operations

index.php: Used to display basic operations:

<h2>常用原子操作</h2>
<a href="check.php?action=add">执行添加操作</a><br><br>
<a href="check.php?action=delete">执行删除操作</a><br><br>
<a href="check.php?action=search">执行查找操作</a><br><br>
<a href="check.php?action=update">执行更新操作</a><br><br>

check.php: Hit the atomic operation option and a dialog box will pop up. The effect is as follows:

<?php
$action=$_GET["action"];
switch($action)
{
	case "delete":
		echo "<script>alert('现在可以执行删除操作');</script>";
		break;
	case "add":
		echo "<script>alert('现在可以执行添加操作');</script>";
		break;
	case "search":
		echo "<script>alert('现在可以执行查找操作');</script>";
		break;
	case "update":
		echo "<script>alert('现在可以执行更新操作');</script>";
		break;
}
?>

The above has introduced the effects of simulating common database operations, including aspects of the process. I hope it will be helpful to friends who are interested in PHP tutorials.