How much memory does a space character take?

Question

Programming

So I write code like this, I have a lot of spaces and often ask myself this question, how much space does the space character take?

function ( $a ) {
...
//или
function($a){
...

I understand that it is necessary to write documented and readable code, so I always take something in between

/** super-duper function [ calculates whatever] 
* $a our whatever
* return ERROR
*/
function($a)
{...

Answer 1

in UTF-16 two bytes
in UTF-8/cp1251/KOI8/CP866 one byte.
In the compiled program, your spaces will not be present at all.

Answer 2

1 byte