Translate from BASIC to PHP?

[McRat]

This is a simple calculator written in BASIC for drag racing.
Can anyone translate this to PHP or point me to a good tutorial?

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CONST Loss = .75               'Drivetrain loss 
CONST Ex = .33333333           'cubic curve exponent
CONST ETconstant = 5.825       'corrects units and adjusts
CONST MPHconstant = 234        'corrects units and adjusts

INPUT "What is your raceweight"; lbs       'get keyboard input
INPUT "What is your rear wheel HP"; rwhp   'get keyboard input

hp = rwhp / loss                    'calculate new hp variable

PRINT "Estimated ET is:  "; (lbs/hp)^Ex * ETconstant    'Calc
PRINT "Estimated MPH is:  "; (hp/lbs)^Ex * MPHconstant  'Calc

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Then I need to figure out how to imbed it in our vB board in our drag race forum.