PHP：如何使用SimpleXML解析/获取XML outsideText

Question

I'm trying to parse a large XML file to put the contents in my database. My question is simple, although I find it difficult to find a nice and clean solution.

Imagine the following XML-string:

<tag1>
    OuterText <tag2>InnerText</tag2>
</tag1>

Edit. The question is: How do I catch the OuterText in a string?

I could just remove tags of and the tags and content of using regex, but so far I've been using SimpleXML so I'd prefer an answer that goes nicely with this practice.

Answer 1

Okay, looks like I asked this question too fast. I messed around a bit using my own simplified example and this is what I found. It actually works, despite the malformed XML.

$xml = "<tag1>
          OuterText <tag2>InnerText</tag2>
        </tag1>"

$sxe = new SimpleXMLElement($xml);

$out = (string)$sxe;
$in = (string)$sxe->tag2;

// output:
// OuterText
// InnerText
echo "$out<br>$in";

Edit: This method will produce the following result with an XML-string with OuterText on both sides of the inline tag:

$xml = "<tag1>
          OuterText1 <tag2>InnerText</tag2> OuterText2
        </tag1>"
// output will then be:
// OuterText1 OuterText2 ($out)
// InnerText ($in)

Answer 2

Something like this should work:

$yourinput = new SimpleXMLElement($xmlstr);
foreach($yourinput->tag1 as $curtag){
    mysql_query("INSERT INTO table (field1, field2) VALUES($curtag, $curtag->tag2)");
}

Answer 3

If I understand the question correctly, you want all the text content of a tag, in order, but without any inner XML tags.

It's not particularly elegant, but this would theoretically do the trick:

$inner_text = strip_tags($some_simplexml_node->asXML()); 

The trick here is that SimpleXML can serialize any fragment of XML (eg a single node that you've found while traversing the document) back into XML; removing all tags from that should then give you all the text content, in the right order.

Answer 4

You wont be able to use simpleXML or anything similar for this as it is not valid XML to have this text contained outside of any element. Is this intentional or an error in the XML generation(not sure where you are getting the XML from)?