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PHP5中文手册
SimpleXML
PHP Manual

SimpleXMLElement->children()

(PHP 5 >= 5.0.1)

SimpleXMLElement->children() — Finds children of given node

说明

SimpleXMLElement
SimpleXMLElement children ([ string $ns [, bool $is_prefix ]] )

This method finds the children of the element of which it is a member. The result follows normal iteration rules.

Note: SimpleXML 创建了一条给大部分方法增加交互式属性的规则。这些属性不能够使用 var_dump() 或其它检查对象的方法来查看。

参数

ns

is_prefix

Default to FALSE

返回值

更新日志

版本 说明
5.2.0 The optional parameter is_prefix was added.

范例

Example#1 Traversing a children() pseudo-array

<?php
$xml = new SimpleXMLElement(
'<person>
 <child role="son">
  <child role="daughter"/>
 </child>
 <child role="daughter">
  <child role="son">
   <child role="son"/>
  </child>
 </child>
</person>');

foreach ($xml->children() as $second_gen) {
    echo ' The person begot a ' . $second_gen['role'];

    foreach ($second_gen->children() as $third_gen) {
        echo ' who begot a ' . $third_gen['role'] . ';';

        foreach ($third_gen->children() as $fourth_gen) {
            echo ' and that ' . $third_gen['role'] .
                ' begot a ' . $fourth_gen['role'];
        }
    }
}
?>

上例将输出：

The person begot a son who begot a daughter; The person
begot a daughter who begot a son; and that son begot a son

SimpleXML
PHP Manual