在php中的数组中转换xml数据问题

Question

$data = 
    '<parent>
       <child>
         <EC>1</EC>
         <Descript>Savings Accepted</Descript>
         <Logic>RF > LF = PAID</Logic>
         <Rules>RF is greater than PAID and LF is equal to PAID</Rules>
       </child>
       <child>
         <EC>2</EC>
         <Descript>Savings Declined</Descript>
         <Logic>RF >= LF < PAID</Logic>
         <Rules>RF greater/equal PAID, LF equal PAID</Rules>
       </child>
     </parent>';

file_put_contents('rules.xml', $data);

$xml = simplexml_load_file("rules.xml")  or die("Error: Cannot create object");

我无法转换。

Answer 1

你应该使用实体 <而不是

$data = <<<'XML'
<parent><child>
    <EC>1</EC>
    <Descript>Savings Accepted</Descript>
    <Logic>RF &gt; LF = PAID</Logic>
    <Rules>RF is greater than PAID and LF is equal to PAID</Rules>
</child>
<child>
    <EC>2</EC>
    <Descript>Savings Declined</Descript>
    <Logic>RF &gt;= LF &lt; PAID</Logic>
    <Rules>RF greater/equal PAID, LF equal PAID</Rules>
</child></parent>
XML;
file_put_contents('rules.xml', $data);
$xml = simplexml_load_file("rules.xml") or die("Error: Cannot create object");

print_r($xml);

输出

SimpleXMLElement 对象 ( [子] => 数组 ( [0] => SimpleXMLElement 对象 ( [欧共体] => 1 [描述] => 接受储蓄 [逻辑] => RF > LF = 付费 [规则] => RF大于PAID，LF等于PAID ) [1] => SimpleXMLElement 对象 ( [欧共体] => 2 [描述] => 储蓄被拒绝 [逻辑] => RF >= LF RF 更大/等于 PAID，LF 等于 PAID ) ) )

来源：http://www.tutorialspoint.com/xml/xml_character_entities.htm https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references