쿠키를 사용하여 PHP에서 로그인 인터페이스를 구현하는 방법

<!-- 登录表单 -->
<div class=&#39;div_login&#39; id=&#39;login&#39;>
<form name=&#39;login_form&#39; method="post" action="/FirstPHPWeb/application/controllers/loginCl.php">
<!-- 在此处设置文本框默认值为 cookie 中的内容 -->
账　号：<input type="text" name="id" value="<?php echo @$_COOKIE[&#39;id&#39;]; ?>"/><br/>
密　码：<input type="password" name="psw" value="<?php echo @$_COOKIE[&#39;psw&#39;]; ?>"/><br/>
验证码：<input type="text" name="checkcode" /><br/>
<img  id=&#39;login_checkcode_img&#39; onclick="changeCode(&#39;login_checkcode_img&#39;)" src="../controllers/createCheckCode.php" ><a href="#" onclick="changeCode(&#39;login_checkcode_img&#39;)">看不清楚，换一张</a><br/>
<input type="checkbox" name="isKeepInfo" value="keep" checked/>在此电脑上保留用户名<br/>
<input class=&#39;btn&#39; type="image" src=&#39;/FirstPHPWeb/public/img/login.png&#39; alt=&#39;submit&#39; name=&#39;login&#39; value=&#39;登陆&#39; />
</form>

// 在表单的处理界面添加判断
if($isKeepInfo){
    setcookie("id", "$id", time()+3600*24*7,'/');
    setcookie("psw", "$psw", time()+3600*24*7,'/');
}

setcookie(name, value, expire, path, domain);