How to implement PHP login without using a database

How to implement PHP login without a database: 1. Create an index.php file; 2. Create a form login form; 3. Pass "if($user=='user' && $pwd==' pwd'){...}" method can be used to determine the user's login.

#The operating environment of this article: Windows7 system, PHP7.1, Dell G3.

How to implement php login without using a database?

php does not need a database to design the login interface

POST the account and password directly to another PHP for acceptance.

index.php

<form name="form1" method="post" action="confirm.php">
<p>用户名:<input type="text" name="user"></p>
<p>密码:<input type="password" name="pwd"></p>
<p><input type="submit" ></p>
</form>

confirm.php

<?php
$user = isset($_POST[&#39;user&#39;])? $_POST[&#39;user&#39;] : &#39;&#39;;
$pwd = isset($_POST[&#39;pwd&#39;])? $_POST[&#39;pwd&#39;] : &#39;&#39;;
if(empty($user) || empty($pwd)){
echo &#39;用户名和密码不能为空&#39;;
exit();
}
if($user==&#39;user&#39; && $pwd==&#39;pwd&#39;){
echo &#39;登陆成功&#39;;
}else{
echo &#39;用户名或密码错误&#39;;
}
?>

Recommended study: "PHP Video Tutorial"

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