php下通过xml_parse解析xml文件
xml_parse解析xml文件时候，
很有可能不仅仅调用一次character_handler。
所以在获得xml节点的文本信息的时候，要用连接运算".="。
参考 http://jp2.php.net/manual/ro/function.xml-set-character-data-handler.php
ken at positive-edge dot com
30-Jan-2002
01:20
the function handler is called several times when it parses the
character data. It doesn't return the entire string as it suggests.
There are special exceptions that will always force the parser to stop
scanning and call the character data handler. This is when:
- The parser runs into an Entity Declaration, such as & (&)
or ' (�)
- The parser finishes parsing an entity
- The parser runs into the new-line character (\n)
- The parser runs into a series of tab characters (\t)
And perhaps others.
For instance, if we have this xml content:
<mytag name=�Ken Egervari� title=�Chief Technology Officer�>
Ken has been Positive Edge's Chief Technology Officer for 2
years.
</mytag>
The parser will call the character data handler 6 times. This is what
will happen:
1 \n
2 \t
3 Ken has been Positive Edge
4 �
5 s Chief Technology Officer for 2 years.
6 \n
I hope that helps people out.
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