问题描述
我知道这可能是一个新手问题，但请逗我笑.当读取标签中带有soap:"的 xml 字符串时，simplexml_load_string() 不会读取到 xml.
I know this may be a newbie question, but please humor me. When reading an xml string with "soap:" in the tags, simplexml_load_string() will not read in the xml.
给定这个脚本:
#!/usr/bin/php
<?php
$s='
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
<soap:Header>
<context xmlns="urn:zimbra"/>
</soap:Header>
<soap:Body>
<AuthResponse xmlns="urn:zimbraAdmin">
<authToken>somevalue</authToken>
<lifetime>123124123</lifetime>
<a n="zimbraIsDomainAdminAccount">false</a>
</AuthResponse>
</soap:Body>
</soap:Envelope>';
print_r(simplexml_load_string($s));
echo "
";
print_r(simplexml_load_string(str_ireplace("soap:", "", $s)));
?>
我得到这个输出:
jesse@jesse-debian:~/code/zmsoap$ ./xmltest.php
SimpleXMLElement Object
(
)
SimpleXMLElement Object
(
[Header] => SimpleXMLElement Object
(
[context] => SimpleXMLElement Object
(
)
)
[Body] => SimpleXMLElement Object
(
[AuthResponse] => SimpleXMLElement Object
(
[authToken] => somevalue
[lifetime] => 123124123
[a] => false
)
)
)
jesse@jesse-debian:~/code/zmsoap$
我只是很好奇为什么会发生这种情况，以及是否有比进行字符串替换更合适的方法来解决该问题.
I'm just curious why this is happening, and if there is a more proper way to remedy the problem as opposed to doing a string replace.
推荐答案
带有冒号 in 的标记名称表示该标记位于非默认命名空间中.SimpleXML 一次只查看一个命名空间，因此您需要使用 ->children() 方法.
A tag name with a colon in indicates the tag is in a non-default namespace. SimpleXML only looks at one namespace at a time, so you need to specifically select the namespace using the ->children() method.
在这种情况下 $xml->children('http://www.w3.org/2003/05/soap-envelope')->Body 或 $xml->children('soap', true)->Body 应该都可以.
In this case $xml->children('http://www.w3.org/2003/05/soap-envelope')->Body or $xml->children('soap', true)->Body should both work.
出于这个和其他原因，不建议使用 print_r 来调试 SimpleXML 对象.试试这个专用功能.
For this and other reasons, it's not advisable to use print_r to debug SimpleXML objects. Try this dedicated function instead.
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