The FizzBuzz problem

Reusable and flexible solution

<?php
 
//I already posted this in response to another post, but I wanted to get it to where you all could see it
 
//classes which would typically be kept in separate files named htmlCode.class.php and numberFunctions.class.php respectively
class htmlCode
{
    public function __construct()
    {
        
    }
    
    public function br($echo=0, $qty=1)
    {
        $string = '';
        
        for($int=1;$int<=$qty;$int++) $string .= '<br />';
        
        echo $echo ? $string:'';
        
        return $string;
    }
}
 
class numberFunctions
{
    public function __construct()
    {
        $this->html = new htmlCode();
    }
    
    public function factorize($int)
    {
        $factors = array();
        for($i=1;$i<=sqrt($int);$i++)
        {
            if($int % $i)
            {
                
            }
            else
            {
                $factors[] = $i;
                if($i != sqrt($int)) $factors[] = $int/$i;
            }
        }
        sort($factors);
        return $factors;
    }
    
    public function replaceFactorsWithWords($int,$cases = array())
    {
        $printMe = '';
        $factors = $this->factorize($int);
        foreach($factors as $factor)
        {
            $printMe .= isset($cases[$factor]) ? $cases[$factor]:'';
        }
        
        return $printMe;
    }
    
    public function replaceNumbersDivisible($cases=array(),$min=1,$max=100,$breaksInBetween=1)
    {
        $string = '';
        
        for($i=$min;$i<=$max;$i++)
        {
            $result = $this->replaceFactorsWithWords($i,$cases);
            $result = $result != '' ? $result:$i;
            $result .= $this->html->br(0,$breaksInBetween);
            $string .= $result;
        }
        
        return $string;
    }
}
 
//class definitions
$numbers = new numberFunctions();
 
//defining the cases in which to print things
$cases = array(3=>'Fizz',5=>'Buzz');
 
echo $numbers->replaceNumbersDivisible($cases);
?>

Simple solution just to make it work

<?php for ( $i=1; $i <= 100; $i++ ) echo ($i % 15 ? ($i % 5 ? ($i % 3 ? $i:'Fizz'):'Buzz') : 'FizzBuzz').'<br />';?>

The first code above is my response to the common FizzBuzz problem, which states:

Write a program that prints the numbers from 1 to 100. But for multiples of three print "Fizz" instead of the number and for the multiples of five print "Buzz". For numbers which are multiples of both three and five print "FizzBuzz".

So I wrote the program like I normally would which is in a way so as to maximize reusability and flexibility. If you changed some variables it could start at any number and end at any number, change the amount of lines between numbers, use different words or even add words for different variables like print 'Cool, Inc.' for multiples of 7.

if you simply wanted to get it to work without going through all this trouble you could simply write the second code I provided.