$tk102++;

[tk102]

Hey I figured out that obfuscation!

 

The ''=~ begins a regular expression

the next ( and the final ) are the brackets for reg exp.

the '?{' tells the reg exp to begin evaluating code contained in a string

the .( up to the final ). is some code that uses some bitstring XOR operations to create a string: print "happy birthday"

 

Very cool Jmac. I wasted too much time trying decrypt it.