How to pass ajax value to controller in codeigniter?

Pass-by-reference, and pass-by-value?

• I want to assign the pointers in my array a value. So I can do this: int height = 5; int **int_array_pointer = (int *) main_pointer; //a casted pointer; irrelevant to question) int_array_pointer[0] = &height; //pass by reference Or *int_array_pointer[0] = 5; // pass by value --------------------------------------… are my comments correct on the examples?

• Answer:

  No. The concepts of "pass by reference" and "pass by value" refer to how parameters are internally passed to function calls. When function calls use "pass by reference", that means that the address of the object is put onto the stack (or registers) to pass to the function. When "pass by value" is used, that means that the object value itself is passed to the function.