php - yii2 generates two sessions after logging in, chrome browser

Question

In the yii2 framework, after automatic login is turned off, when logging in with browsers such as Chrome browser, domestic 360, and QQ browser, two sessions will be generated, one is the precise domain name of this website, and the other is the vague second-level domain name. If multiple websites use the same second-level domain name, when switching back and forth, there will be...

为情所困 · Answer

Post your session configuration

In the config/main.php of your project,

return [
    ...
    'components' => [
        ...
        'session' => [
            'class' => 'yii\web\Session',
            'cookieParams' => [
                'domain' => 'backend.mysite.com', // 这里固定你的session域名
                'lifetime' => 3600 * 24 * 30,
            ],
            'name' => 'PHPSESSID_FOR_BACKEND', // 最好是不同的域名也设置不同的name
        ],
        ...
    ],
    ...
];