新建一个login文件，里面存放的就是用户登录的模块。
<html> ???<head> ???????<meta charset="utf-8"> ???????<style type="text/css"> ???????????????????</style> ???????<script type="text/javascript"> ???????????????????????????????</script> ???</head> ???<body> ???</body></html>在body中贴如以下代码：
<h1>用户登录</h1> ???????<form action="login.php" method="POST"> ???????????<table> ???????????????<tr> ???????????????????<td>请输入用户名:</td> ???????????????????<td><input type="text" name="username"></td> ???????????????</tr> ???????????????<tr> ???????????????????<td>请输入密码:</td> ???????????????????<td><input type="password" name="password"></td> ???????????????</tr> ???????????????<tr> ???????????????????<td></td> ???????????????????<td><input style="float:right;" type="submit" name="submit"></input></td> ???????????????</tr> ???????????</table> ???????</form>最终表单提交地址为login.php，具体的业务逻辑会在下一节给出。
【php增删改查实例】第十七节 - 用户登录（1）
原文地址：https://www.cnblogs.com/skyblue-li/p/9155005.html