SimpleXMLElement::getChildren

(PHP 8)

SimpleXMLElement::getChildren — Returns the sub-elements of the current element

说明

public SimpleXMLElement::getChildren(): ?SimpleXMLElement

警告

Prior to PHP 8.0, SimpleXMLElement::getChildren() was only declared on the subclass SimpleXMLIterator.

This method returns a SimpleXMLElement object containing sub-elements of the current SimpleXMLElement element.

参数

此函数没有参数。

返回值

Returns a SimpleXMLElement object containing the sub-elements of the current element.

示例

示例 #1 Return the sub-elements of the current element

<?php
$xml = <<<XML
<books>
    <book>
        <title>PHP Basics</title>
        <author>Jim Smith</author>
    </book>
    <book>XML basics</book>
</books>
XML;

$xmlElement = new SimpleXMLElement($xml);
for ($xmlElement->rewind(); $xmlElement->valid(); $xmlElement->next()) {
    foreach($xmlElement->getChildren() as $name => $data) {
    echo "The $name is '$data' from the class " . get_class($data) . "\n";
    }
}
?>

以上示例会输出：

The title is 'PHP Basics' from the class SimpleXMLElement
The author is 'Jim Smith' from the class SimpleXMLElement