Suppose a hacker has an account of your website He could set the PHPSESSID to empty After of that He login in your system The PHPSESSID remains blank and user has already logged with this session

To extend the functionality of you web application relative to your requirements you are supposed to use existing yii core libraries or use external libraries. There are some steps to ensure security, uniqueness, modularity, performance and to avoid rework in future.

Step 01: Have a Strategy

• Is my extension just for fun/demonstration purposes or for everyday use in the real world? -...

Hello Yii friends

Update: This wiki has been rewritten to be in line with Yii 1.1.14. Since many of the detailed complexities are now handled by Yii, the article focuses on how the crypt() built-in function works and why it's important to use it correctly.

This wiki has been replaced by Use crypt() for password storage.

Sometimes you need to force a user to change their password after x number of days. This article describes how to implement this using a filter, ChangePasswordFilter.

CSRF é o acrônimo para Cross-site request forgery.
CSRF é um ataque que forca o usuário a executar ações não desejadas numa aplicação Web na qual ele está autenticado.

CSRF is the acronymn for Cross-site request forgery.
It is an attack which forces an end user to execute unwanted actions on a web application in which he/she is currently authenticated.

Authentication and Authorization is a good tutorial. Among other topics, it describes basic aspects of Yii's RBAC implementation. But however hard I read the tutorial, I couldn't understand how exactly the hierarchy works. I found how to define authorization hierarchy, how business rules are evaluated, how to configure a...