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  1. <?php
  2.  
  3. $sum = 0;
  4. for($i = 0; $i < 1000; $i++) {
  5. if($i % 3 == 0 || $i % 5 == 0) {
  6. $sum += $i;
  7. }
  8. }
  9.  
  10. echo $sum;
Success #stdin #stdout 0.02s 13112KB
stdin
Standard input is empty
stdout
233168