php基础-cookie&session

设置cookie

//设置cookie
setcookie('key', 'value', time() + 60, '/');

设置session

//必须开启session
session_start();
$_SESSION['username'] = 'zhangsan';
//重置session
session_destroy();
//指定重置
unset($_SESSION['username'])

模拟检查session

//login.php 设置session
session_start();
$_SESSION['username'] = 'zhangsan';
$_SESSION['password'] = '123';

//check.php 检查
session_start();
if (!empty($_SESSION['username']) && $_SESSION['username'] === 'zhangsan' && $_SESSION['password'] === '123') {
    echo '登陆成功';
} else {
    echo '验证失败';
}