Well I can tell you right now that it won't be able to directly interact with the device because that involves having access to the user's computer which is not possible with PHP unless it is running on the same machine.
ShawnCplus
Code Monkey
1,583 posts since Apr 2005
Reputation Points: 526
Solved Threads: 268
it is the same as interacting with any other input,
password
light pen
touchscreen
the output of the device is compared with the stored sample on submit of the form
no more difficult than any other submitted form
the number of posts on this from 1 post wonders leads me to believe that this is a school exercise
this site is not a homework repository, you will learn nothing from having someone else do it for you
post some attempted code for remediation people
get off your butts and make an attempt
almostbob
Posting Sensei
3,149 posts since Jan 2009
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