public static function setLeadingDigitsPatterns(\DOMElement $numberFormatElement, NumberFormat $format) { $leadingDigitsPatternNodes = $numberFormatElement->getElementsByTagName(self::LEADING_DIGITS); $numOfLeadingDigitsPatterns = $leadingDigitsPatternNodes->length; if ($numOfLeadingDigitsPatterns > 0) { for ($i = 0; $i < $numOfLeadingDigitsPatterns; $i++) { $elt = $leadingDigitsPatternNodes->item($i); $format->addLeadingDigitsPattern($elt->firstChild->nodeValue, true); } } }