funcaofizzbuzz.php

<?php
for ($i = 1; $i <= 100; $i++){
    if(divisorCinco($i) && divisorTres($i)){
        echo "<p>FizzBuzz</p>";
    }elseif (divisorCinco($i)){
        echo "<p>Buzz</p>";
    }elseif(divisorTres($i)){
        echo "<p>Fizz</p>";
    }else{
        echo "<p>{$i}</p>";
    }
}

public function divisorCinco($num)
{
    return $num % 5 == 0 ||$num % 5 == 5;
}

public function divisorTres($num)
{
    return $num % 3 == 0;
}