php - 如何从 XML 文档获取值

Question

我有连接到 API 的 php 代码:

require(dirname(__FILE__) . '/MadMimi.class.php');
$mailer = new MadMimi('XXX.org', '000');
$lists = $mailer->Lists();
var_dump($lists);
foreach ($lists as $list) {
echo $list['name']; }

<强> var_dump 显示 XML 文档，格式如下:

`string '<?xml version="1.0" encoding="UTF-8"?>
<lists>
  <list id="8" name="#1" subscriber_count="210" display_name="Display name"/>
  <list id="9" name="#2" subscriber_count="2242" display_name="Display name"/>`

...(长度=2726)

但它只显示前几行。如何让它显示所有值？

此外，我尝试使用 foreach 循环打印特定值，但它不起作用，并且收到错误:Invalid argument supplied for foreach()

如果 foreach 不起作用，我还能如何从 XML 文档获取值？

如果我这样做

$xml=simplexml_load_string($lists) or die("Error: Cannot create object"); 
print_r($xml);

我得到:

SimpleXMLElement Object ( [list] => Array ( [0] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 8 [name] => #1 [subscriber_count] => 210 [display_name] => Display name ) ) [1] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 9 [name] => #2 [subscriber_count] => 2242 [display_name] => Display name ) )

如何为此编写 foreach 循环？

Answer 1

这会对你有帮助。

$lists = '<?xml version="1.0" encoding="UTF-8"?>
<lists>
  <list id="8" name="#1" subscriber_count="210" display_name="Display name"/>
  <list id="9" name="#2" subscriber_count="2242" display_name="Display name"/>
</lists>';


$xml = simplexml_load_string($lists) or die("Error: Cannot create object");

foreach ($xml->children() as $child) {
     // List all the tags
    echo '<pre>';print_r($child);echo '</pre>';

    foreach($child->attributes() as $a => $b) {
    // list all the attributes
        echo $a,'="',$b,"\"\n";
    }
}