Question

Xml是这样的：

<CRates>
    <Date>20010323</Date>
    <Currencies>
        <Currency>
            <ID>AED</ID>
            <Units>1</Units>
            <Rate>0.17200000</Rate>
        </Currency>
        <Currency>
            <ID>ATS</ID>
            <Units>1</Units>
            <Rate>0.04102750</Rate>
        </Currency>
    </Currencies>
</CRates>

Php是这样的：

$currencies = simplexml_load_file('__joomla.xml');

/**/
$cdate=$currency->Date;
echo "<time>". $date. "</time><br>";

foreach ($currencies as $currency):
    $id=$currency->ID;
    $units=$currency->Units;
    $rate=$currency->Rate;

    echo 
    "
    <div class='id'>". $id. "</div>
    <div class='units'>". $units. "</div>
    <div class='rate'>". $rate. "</div>
    ";
endforeach;

如果删除<CRates> <Date>20010323</Date>并删除结尾</CRates>，则一切正常。

但未删除，不显示任何内容。

请建议需要纠正的内容。

Answer 1

原因是因为您正在访问$currencies，就像它的根元素一样。您可以使用$xmlDoc->currencies加载文件和参考货币，它应该可以使用。请尝试以下方法：

$xmlDoc = simplexml_load_file('__joomla.xml');
/**/
$cdate=$xmlDoc->Date;
echo "<time>". $cdate. "</time><br>";

foreach ($xmlDoc->Currencies->Currency as $currency):
  $id=$currency->ID;
  $units=$currency->Units;
  $rate=$currency->Rate;

  echo 
  "
  <div class='id'>". $id. "</div>
  <div class='units'>". $units. "</div>
  <div class='rate'>". $rate. "</div>
  ";
endforeach;

更新：将$xmlDoc->Currencies更新为$xmlDoc->Currencies->Currency，因为我们想要循环通过货币的子女。

Answer 2

试试这个：

$currencies = simplexml_load_file('__joomla.xml');

/**/
$cdate = $currencies->Date;
echo "<time>". $date. "</time><br>";

foreach ($currencies->CRates->Currencies->Currency as $currency):
$id    = $currency->ID;
$units = $currency->Units;
$rate  = $currency->Rate;

echo 
"
<div class='id'>". $id. "</div>
<div class='units'>". $units. "</div>
<div class='rate'>". $rate. "</div>
";
endforeach;

Answer 3

您需要使用->children()来迭代Currencies

的子节点

$crates = simplexml_load_file('__joomla.xml');     

/**/                                               
$cdate = $crates->Date;                            
echo "<time>". $cdate. "</time><br>";              

$currencies = $crates->Currencies->children();     
foreach ($currencies as $currency):                
$id = $currency->ID;                               
$units = $currency->Units;                         
$rate = $currency->Rate;                           

echo                                               
"                                                  
<div class='id'>". $id. "</div>                    
<div class='units'>". $units. "</div>              
<div class='rate'>". $rate. "</div>                
";                                                 
endforeach;

Answer 4

这很好用： -

$xml='<CRates>
<Date>20010323</Date>

<Currencies>

<Currency>
<ID>AED</ID>
<Units>1</Units>
<Rate>0.17200000</Rate>
</Currency>

<Currency>
<ID>ATS</ID>
<Units>1</Units>
<Rate>0.04102750</Rate>
</Currency>

</Currencies>
</CRates>';
$xml1 = simplexml_load_string($xml);
//$xml hold the object iterate through as per requirement
echo '<pre>';
var_dump($xml1);

Php解析xml（多个嵌套＆lt;＆gt; <！---->）。使用一个嵌套的＆lt;＆gt; <！---->有效， - 多个不起作用

4 个答案: