phpstorm connection with xdebug was not established. validate installation

Another way to solve it - to change the port of xdebug in php.ini. For example to 9001:

xdebug.remote_port=9001

After that you need to change xdebug port in PhpStorm in Preferences->Languages & Frameworks -> PHP -> Debug. Xdebug port set to 9001.

from : http://stackoverflow.com/questions/31285486/connection-between-phpstorm-and-xdebug