$value) { if ($value === null) { // do nothing } else { $result = \str_replace( \sprintf('{{%s}}', $key), $value, $result ); } } return $result; } /** */ function slice( string $str, int $size ) : array { $slices = []; $rest = $str; while (\strlen($rest) > 0) { \array_push($slices, \substr($rest, 0, $size)); $rest = \substr($rest, $size); } return $slices; } ?>