Zend disabled the Xdebug support of the Eclipse PDT plugin in its distribution of the Eclipse platform. If you’d like to use Xdebug, Max Horvath posted these simple steps to enable the Xdebug functionality of Eclipse.
First you need to quit Zend Studio for Eclipse if it is still running.
Go to your Eclipse folder, for this article for instance /usr/local/ZendStudio:
cd /usr/local/ZendStudio
Enter the plugins folder (i.e. /usr/local/ZendStudio/plugins):
cd plugins
Tags: PHP