php and asp are both website building language that one need to learn. which of these 2 would like to learn professionally?

I prefer php because php code runs faster and requires minumal requirements unlike asp you need IIS to run asp.

seanlove said:

PHP is an all around better choice than ASP. php is fast, flexible and many of the tools used in php are free of cost, while asp isn't.

well said, to add more of php's advantage. you can create a complex and useful scripts with php really easily.