用phpDOM loadXML出错，请教！

Question

代码如下：
$xml = new DomDocument('1.0');
$xml->loadXML($string);提示错误如下:
Warning: DOMDocument::loadXML() [domdocument.loadxml]: Blank needed here in Entity, line: 1

Answer 1

$string ='<?xml version="1.0"encoding="UTF-8" ?>
<ordersubmit>
<totalcharge>64</totalcharge>
<state>1</state>
<ordertime>xxxxx</ordertime>
<deliverytime>xxxx</deliverytime>
<userid>3321124</userid>
<username>xxx</username>
<phone>xxxxx</phone>
<address>xxxxx</address>
<zcode>33555</zcode>
<re>xxxxxxxxxxxxx</re>
<goods>
<goodsitem>
<goodsid>1</goodsid>
<num>2</num>
<unitprice >2</unitprice>
<discount >2</discount>
<charge >2</charge >
<fare>2</fare>
</goodsitem>
<goodsitem>
<goodsid>2</goodsid>
<num>2</num>
<unitprice >2</unitprice>
<discount >2</discount>
<charge >2</charge>
<fare >2</fare>
</goodsitem>
</goods>
</ordersubmit>';

Answer 2

<?xml version="1.0"(这里必须有空格分割)encoding="UTF-8" ?>