FizzBuzz.php

<?php


class FizzBuzz
{
    public function solve($start = 1, $end = 100)
    {
        for($i = $start; $i <= $end; $i++) {
            $this->print($i);
        }
    }

    private function print($num)
    {
        $output = "";

        if ($this->isFizz($num)) {
            $output .= "Fizz";
        } 

        if ($this->isBuzz($num)) {
            $output .= "Buzz";
        } 

        $output = $output ?: $num;

        echo "$output <br>";
    }

    private function isFizz($num)
    {
        return $num % 3 === 0;
    }

    private function isBuzz($num)
    {
        return $num % 5 === 0;
    }
}

$fizzBuzz = new FizzBuzz();
$fizzBuzz->solve();