original_string: public static function indent($str, $spaces = 4, $level = 1){
          return str_repeat(" ", $spaces * $level)
              . str_replace("\n", "\n" . str_repeat(" ", $spaces * $level), $str);
      }
code: public static function indent($str, $spaces = 4, $level = 1){
          return str_repeat(" ", $spaces * $level)
              . str_replace("\n", "\n" . str_repeat(" ", $spaces * $level), $str);
      }
code_tokens: public static function indent ( $ str , $ spaces = 4 , $ level = 1 ) { return str_repeat ( " " , $ spaces * $ level ) . str_replace ( "\n" , "\n" . str_repeat ( " " , $ spaces * $ level ) , $ str ) ; }
docstring: Inserts N spaces to the left of a string
  @param $str String
  @param $spaces Number of spaces to insert
  @param $level Indentation level (1, 2, 3, ...)
  @return String with N spaces inserted
docstring_tokens: Inserts N spaces to the left of a string