如何获取和播放以MySQL BLOB存储的WAV文件?

I want to get and play the WAV file stored in MySql Db using PHP and Zend-Framework. But I am not able to do so. I want to do this in 2 steps: 1. Convert the BLOB as .wav file 2. Play that .wav file in a new window.I want to get and play the WAV file stored in M