Write a PHP code to:

1- Create 2 associative arrays (A and B).

2- Fill both arrays with random numbers.

3- Write the following functions (Both A and B will be parameters):

andFunction that executes the ANDING between A and B (returns an associative array of the items shared between A and B) and returns the result as an associative array.

orFunction that executes the ORING operation between A and B and returns the result as an associative array.

concatFunction that adds B to the end of A and also returns the result as an associative array