This is the part to install from an archive file :
Installing Yii from an archive file involves three steps:
Download the archive file from yiiframework.com.
Unpack the downloaded file to a Web-accessible folder.
Modify the config/web.php file by entering a secret key for the cookieValidationKey configuration item (this is done automatically if you are installing Yii using Composer):
// !!! insert a secret key in the following (if it is empty) - this is required by cookie validation
‘cookieValidationKey’ => ‘enter your secret key here’.
In this way i haven’t index file …