Hello there! Are you ready to solve another engaging problem today? We have a practical task that will enhance your problem-solving skills. It involves critical aspects of programming — dealing with arrays and using techniques such as sorting and the two-pointer method. So, let's jump in!

Alright, our task is as follows. Suppose you have two equally long arrays, A and B, with a length varying from 1 to 1000, with each element being a unique positive integer ranging from 1 up to $10^6$. Your challenge is to craft a PHP function that identifies the closest number in array B to $2 \cdot B[i]$ for each . Once this number is identified, say, for the specific , it is . We want to create an array from s in the order of increasing .