What you need to learn yii

Web server:
‰‰ 2.x version of Apache web server is preferred
‰‰ Other versions and web servers will work too, but configuration details are
not provided
Database server: MySQL is recommended
‰‰ MySQL 4+ with InnoDB support, MySQL 5 or higher recommended
 PHP: PHP 5.3 is recommended
‰‰PHP 5.2 or PHP 5.3, PHP 5.3 recommended
 Yii:
‰‰ latest 1.1.x
Additionally, the following tools are not strictly required but are used for specific recipes:
 PHPUnit
 XDebug
 Selenium RC
 PEAR
 Smarty
 memcached