fizzbuzz.js and fizzbuzz.php implementations

fizzbuzz.js

for (let i = 1; i <= 30; i++) {
  const fizz = !(i % 3);
  const buzz = !(i % 5);

  if (fizz && buzz) console.log("FizzBuzz");
  else if (fizz) console.log("Fizz");
  else if (buzz) console.log("Buzz");
  else console.log(i);
}

<?php

function fizzBuzzLabel(int $number): string
{
    $result = '';
    
    $fizz = $number % 3 === 0;
    $buzz = $number % 5 === 0;

    if ($fizz) {
        $result .= 'Fizz';
    }
    
    if ($buzz) {
        $result .= 'Buzz';
    }

    if ($result !== '') {
        return $result;
    }

    return (string) $number;
}

function getFizzBuzzList(int $start, int $end): Generator
{
//    $result = [];
    
    for ($i = $start; $i <= $end; $i++) {
        yield fizzBuzzLabel($i);
//        $result[] = fizzBuzzLabel($i);

    }
    
//    return $result;
}

function readLines(iterable $lines): void
{
    foreach ($lines as $line) {
        echo $line . PHP_EOL;
    }
}

readLines(getFizzBuzzList(1, 10_000_000));