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<?phpfunction Division7($iInteger){  $aNumbers = array_reverse(str_split((string)$iInteger));  $iSummary = 0;    foreach($aNumbers as $iPlace => $iNumber)    $iSummary += $iNumber * pow(3, $iPlace);    return (bool)($iSummary%7 == 0);}var_dump(Division7(7));var_dump(Division7(14));var_dump(Division7(3151));?>