[PHP] greater than question

[Steve Buehler]

Hopefully someone has done this and has an easy answer.  I know that I can 
do what I need with a LOT of code, but am trying to come up with something 
a little shorter that 50 lines of code.  Here is the problem.  I have 4 
variables that each have a number in them.  I need to find which one has 
the highest number.  I then just need to do something with that number.  If 
two or more have the same "highest" number, than I need to do the same 
thing with them.  So......
$a=5
$b=1
$c=5
$d=3

$a and $c are the highest number.  I need to run something on those two 
variables.

Thanks in Advance
Steve
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