LimeSurvey (formerly known as Phpsurveyor) is an online questionnaire management system that can be integrated with MySQL, MSSQL or http://www.aliyun.com/zixun/aggregation/14171.html "> Postgres to develop, modify, publish online Web surveys, and collect feedback on statistical surveys.
The LimeSurvey 2.0 alpha version adds a PHP-frame port that is currently running in parallel with the old condition engine and will soon replace it completely. EM makes it possible to use advanced piping, micro-tailoring, and complex formulas to determine whether a problem is visible/relevant or not. LimeSurvey now provides an archive file format that makes it possible to archive and download a complete survey in its current state.
Software Information: http://www.limesurvey.org/
Download Address:
Http://nchc.dl.sourceforge.net/project/limesurvey/2._LimeSurvey_unstable/2.0a/limesurvey200alpha-build11276-20111026.zip
Http://nchc.dl.sourceforge.net/project/limesurvey/2._LimeSurvey_unstable/2.0a/limesurvey200alpha-build11276-20111026.tar.gz