The array_merge_recursive() function merges one or more arrays into one array. The difference between this function and thearray_merge()function is when two or more array elements have the same key. Instead of override the keys, the array_merge_recursive() function makes the value as an ar...
You will learn a lot more about function invocation later in this tutorial. I've seen that function definition the whole time, I just didn't and still don't see anything that "called" that function. I guessing it's a "self-invoked" function because I don't see anything for the first...