SimpleXMLElement::count
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SimpleXMLElement::count — Counts the children of an element
说明
public SimpleXMLElement::count(): int
This method counts the number of children of an element.
参数
此函数没有参数。
返回值
Returns the number of elements of an element.
范例
示例 #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.
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User Contributed Notes 1 note
daniel dot erni at focusedpublishing dot com ¶
11 years ago
Alternative code for PHP < 5.3:
<?php
$count = $node->count(); // PHP > 5.3
$count = count($node->children()); // PHP < 5.3
?>
备份地址：http://www.lvesu.com/blog/php/simplexmlelement.count.php