Project Euler Example 1 using PHP

If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.
Find the sum of all the multiples of 3 or 5 below 1000.

Example 1 of project Euler using PHP

Here in this article we will discuss about Project Euler example 1

the main logic in this example is in this condition:

 if($i % 3 == 0 || $i % 5 == 0){
     $sum += $i;
 }

Next, I have written a function which will find the sum of all the multiples of 3 and 5 up to 1000,

function sumOf3And5($count)
{
   $sum = 0;
   for($i=0; $i<$count; $i++)
   {
      if($i % 3 == 0 || $i % 5 == 0){
          $sum += $i;
      }
   }
   echo $sum;
}

echo sumOf3And5(1000);