Yii2中cookie用法示例分析

<?php
//设置方法
$cookie = new cookie([
  'name' => 'cookie_monster',
  'value' => 'me want cookie!',
  'expire' => time() + 86400 * 365,
]);
\yii::$app->getresponse()->getcookies()->add($cookie);
//读取方法
$value = \yii::$app->getrequest()->getcookies()->getvalue('my_cookie');
//给cookie加域名
$cookie = new cookie([
  'name' => 'cookie_monster',
  'value' => 'me want cookie everywhere!',
  'expire' => time() + 86400 * 365,
  'domain' => '.example.com' // <<<=== here
]);
\yii::$app->getresponse()->getcookies()->add($cookie);
//设置登录cookie
$config = [
  // ...
  'components' => [
    // ...
    'user' => [
      'class' => 'yii\web\user',
      'identityclass' => 'app\models\user',
      'enableautologin' => true,
      'loginurl' => '/user/login',
      'identitycookie' => [ // <---- here!
        'name' => '_identity',
        'httponly' => true,
        'domain' => '.example.com',
      ],
    ],
    'request' => [
      'cookievalidationkey' => 'your_validation_key'
    ],
    'session' => [
      'cookieparams' => [
        'domain' => '.example.com',
        'httponly' => true,
      ],
    ],
  ],
];
//只给批定目录配置cookie
$config = [
  // ...
  'components' => [
    // ...
    'session' => [
      'name' => 'admin_session',
      'cookieparams' => [
        'httponly' => true,
        'path' => '/admin',
      ],
    ],
  ],
];
?>