Php/docs/simplexmlelement.count
来自菜鸟教程
SimpleXMLElement::count
(PHP 5 >= 5.3.0, PHP 7)
SimpleXMLElement::count — Counts the children of an element
说明
public SimpleXMLElement::count ( ) : int
This method counts the number of children of an element.
返回值
Returns the number of elements of an element.
范例
Example #1 Counting the number of children
<?php$xml = <<<EOF<people> <person name="Person 1"> <child/> <child/> <child/> </person> <person name="Person 2"> <child/> <child/> <child/> <child/> <child/> </person></people>EOF;$elem = new SimpleXMLElement($xml);foreach ($elem as $person) { printf("%s has got %d children.\n", $person['name'], $person->count());}?>
以上例程会输出：
Person 1 has got 3 children. Person 2 has got 5 children.
