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<!DOCTYPE html> <html> <body> <?php $xml=<<<XML <cars> <car name="Volvo"> <child/> <child/> <child/> <child/> </car> <car name="BMW"> <child/> <child/> </car> </cars> XML; $elem = new SimpleXMLElement($xml); foreach ($elem as $car) { printf("%s 有 %d 个子元素。<br>", $car['name'], $car->count()); } ?> </body> </html>