键中带有@和破折号的SimpleXMLElement对象

Question

我的SimpleXMLElement对象看起来像这样

    SimpleXMLElement Object (
     [report-name] = SimpleXMLElement Object
         (
         [@attributes] = Array
             (
             [name] = Raport
             )

         )

     [date-range] = SimpleXMLElement Object
         (
         [@attributes] = Array
             (
             [date] = Jan 29, 2014
             )

         ) )

我怎样才能从中得到一个'date‘值呢？

Answer 1

来源：PHP website，W3 Schools website

有关简单XML对象的基本用法，请参阅W3学校的链接。

要解决连字符的问题，请参阅直接来自PHP网站的示例：

$xml = simplexml_load_string($input);
$callback = $xml->{"callback-url"};

Answer 2

连字符(-)是个问题，但您有子方法，这将对您有所帮助。

为了让你更好的理解

<?php

////xml which contains the hyphen
$string = <<<XML
<a>
 <x-y name="one" game="lonely">1</x-y>
</a>
XML;

//load XML object
$xml = simplexml_load_string($string);

//process each children
foreach($xml->children() as $a) 
{   
    //collect the attributes and process it
    foreach($a->attributes() as $b => $c) 
    {
        //name and value of attribute
        echo $b,'="',$c,"\"\n";

    }
}