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only zend_extension_ts option with path to library is now suggested to be added into php.ini in prepare-environment.html. It is not enough. xdebug.remote_enable=1 should be also suggested.
xdebug.remote_enable option is described on page http://www.xdebug.org/docs/remote
documentation is updated and is available on php.netbeans.org
http://php.netbeans.org/docs/prepare-environment.html is verified