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@ 2014-05-31T22:06:31Z

<?php
$multiplesOf3 = array();
$multiplesOf5 = array();
for($i = 1; $i <= 1000; $i++) {
	if($i % 3 == 0) $multiplesOf3[] = $i;
    if($i % 5 == 0) $multiplesOf5[] = $i;
}
$multiples = array_merge($multiplesOf3,$multiplesOf5);
$multiples = array_sum($multiples);
echo $multiples;

Output
Performance
VLD
References
Branches

array_sum: documentation ( source)
array_merge: documentation ( source)

preferences:dark modelive preview

31.41 ms | 402 KiB | 5 Q