In which editor does it add or remove spaces and tabs when pasting text?

Question

Code editor

If you copy the first line and put it between two echoes, then you need to put two more spaces.
What editor does this?

$a=10;
if($a) {
  $a=5;
  echo $a;
  echo $a;
}

Answer 1

Pasting and auto-formatting are two different things. As an IDE I recommend PhpStorm, at the moment there is no better php code editor.