[PHP-DB] Password field!

[Pedro M. S. Oliveira]

Hello all!
i was wondering if any1 of you could help me with something.
i have a table with 3 fields user_ip, user and pass.
how can i encript the pass and then read compare it with a pass inserted on the web 
page?    
thanx    


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Pedro Miguel Silva Oliveira
Cell Phone: +351 96 5867227
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