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>SimpleXMLElement->asXML()</H1
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><P
> (no version information, might be only in CVS)</P
>SimpleXMLElement->asXML() --
Return a well-formed XML string based on SimpleXML element
</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN209417"
></A
><H2
>说明</H2
>class <B
CLASS="classname"
>SimpleXMLElement</B
> { <BR
></BR
>mixed <B
CLASS="methodname"
>asXML</B
> ( [string filename] )<BR
></BR
>}<P
> The <TT
CLASS="literal"
>asXML</TT
> method formats the parent object's data
in XML version 1.0.
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN209430"
></A
><H2
>参数</H2
><P
> <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>filename</CODE
></DT
><DD
><P
> If specified, the function writes the data to the file rather than
returning it.
</P
></DD
></DL
></DIV
>
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN209439"
></A
><H2
>返回值</H2
><P
> If the <CODE
CLASS="parameter"
>filename</CODE
> isn't specified, this function
returns a <A
HREF="language.types.string.html"
><B
CLASS="type"
>string</B
></A
> on success and <TT
CLASS="constant"
><B
>FALSE</B
></TT
> on error. If the
parameter is specified, it returns <TT
CLASS="constant"
><B
>TRUE</B
></TT
> if the file was written
successfully and <TT
CLASS="constant"
><B
>FALSE</B
></TT
> otherwise.
</P
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><DIV
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><H2
>范例</H2
><P
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><P
><B
>例 1. Get XML</B
></P
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><code><font color="#000000">
<font color="#0000BB"><?php<br />$string </font><font color="#007700">= <<<XML<br /></font><font color="#0000BB"><a><br /> <b><br /> <c>text</c><br /> <c>stuff</c><br /> </b><br /> <d><br /> <c>code</c><br /> </d><br /></a><br /></font><font color="#007700">XML;<br /><br /></font><font color="#0000BB">$xml </font><font color="#007700">= new </font><font color="#0000BB">SimpleXMLElement</font><font color="#007700">(</font><font color="#0000BB">$string</font><font color="#007700">);<br /><br />echo </font><font color="#0000BB">$xml</font><font color="#007700">-></font><font color="#0000BB">asXML</font><font color="#007700">(); </font><font color="#FF8000">// <?xml ... <a><b><c>text</c><c>stuff</c> ...<br /><br /></font><font color="#0000BB">?></font>
</font>
</code></TD
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>
</P
><P
> <TT
CLASS="literal"
>asXML</TT
> also works on Xpath results:
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><P
><B
>例 2.
Using asXML() on
<A
HREF="function.simplexml-element-xpath.html"
>Xpath</A
>
results
</B
></P
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<font color="#0000BB"><?php<br /></font><font color="#FF8000">// Continued from example XML above.<br /><br />/* Search for <a><b><c> */<br /></font><font color="#0000BB">$result </font><font color="#007700">= </font><font color="#0000BB">$xml</font><font color="#007700">-></font><font color="#0000BB">xpath</font><font color="#007700">(</font><font color="#DD0000">'/a/b/c'</font><font color="#007700">);<br /><br />while(list( , </font><font color="#0000BB">$node</font><font color="#007700">) = </font><font color="#0000BB">each</font><font color="#007700">(</font><font color="#0000BB">$result</font><font color="#007700">)) {<br /> echo </font><font color="#0000BB">$node</font><font color="#007700">-></font><font color="#0000BB">asXML</font><font color="#007700">(); </font><font color="#FF8000">// <c>text</c> and <c>stuff</c><br /></font><font color="#007700">}<br /></font><font color="#0000BB">?></font>
</font>
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