<?php
/******************************************************************************
Welcome to GDB Online.
GDB online is an online compiler and debugger tool for C, C++, Python, Java, PHP, Ruby, Perl,
C#, OCaml, VB, Swift, Pascal, Fortran, Haskell, Objective-C, Assembly, HTML, CSS, JS, SQLite, Prolog.
Code, Compile, Run and Debug online from anywhere in world.
*******************************************************************************/
function task17($n){
$sum = 0;
for ($i=0; $i<=$n; $i++) {
if ($i % 5 == 0 && $i % 3 == 0)
$sum--;
elseif ($i % 3 == 0)
echo "Делится на 3"."\r\n";
elseif ($i % 5 == 0)
$sum += $i;
}
return $sum;
}
echo task17(20);
