Zend Studio is the only Integrated Development Environment (IDE) available for professional developers that encompasses all the development components necessary for the full PHP application lifecycle.
Click here to download Zend Studio 5.5.0
Download URL : http://downloads.zend.com/studio/5.5.0/ZendStudio-5_5_0.tar.gz
Click here to download Zend Studio 5.5.0
Download URL : http://downloads.zend.com/studio/5.5.0/ZendStudio-5_5_0.tar.gz