SimpleXMLElement::count
SimpleXMLElement::count
(PHP 5 >= 5.3.0, PHP 7)
SimpleXMLElement :: count - 计算一个元素的子元素
描述
public int SimpleXMLElement::count ( void )
此方法计算元素的子元素数量。
返回值
返回元素的元素数量。
例子
示例＃1计算子元素的数量
<?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()
}
?>
上面的例子将输出：
Person 1 has got 3 children.
Person 2 has got 5 children.
扩展内容
- SimpleXMLElement :: children（） - 查找给定节点的子节点
← SimpleXMLElement::__construct
SimpleXMLElement::getDocNamespaces →
