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Unique id generation in php

Using the function uniqid(); we can generation unique id in php.

This will use current time stamp in micro second and generate unique id.

Using the function uniqid(); we can generation unique id in php. This will use current time stamp in micro second and generate unique id.    

Using the function uniqid(); we can generation unique id in php. This will use current time stamp in micro second and generate unique id.