Sophie: php-manual-zh-5.2.4-1mdv2008.1 noarch

php-manual-zh-5.2.4-1mdv2008.1.noarch.rpm

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>DomElement-&#62;has_attribute()</H1
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><P
>    (no version information, might be only in CVS)</P
>DomElement-&#62;has_attribute()&nbsp;--&nbsp;
   Checks to see if an attribute exists in the current node
  </DIV
><DIV
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><H2
>说明</H2
>class <B
CLASS="classname"
>DomElement</B
> { <BR
></BR
>bool <B
CLASS="methodname"
>has_attribute</B
> ( string name )<BR
></BR
>}<P
>&#13;   This functions checks to see if an attribute named
   <CODE
CLASS="parameter"
>name</CODE
> exists in the current node.
  </P
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><H2
>参数</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>name</CODE
></DT
><DD
><P
>&#13;       The name of the tested attribute.
      </P
></DD
></DL
></DIV
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN44478"
></A
><H2
>返回值</H2
><P
>&#13;   Returns <TT
CLASS="constant"
><B
>TRUE</B
></TT
> if the asked attribute exists, <TT
CLASS="constant"
><B
>FALSE</B
></TT
> otherwise.
  </P
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>范例</H2
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>例 1. Testing the existence of an attribute</B
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /><br /></font><font color="#007700">include(</font><font color="#DD0000">"example.inc"</font><font color="#007700">);<br /><br />if (!</font><font color="#0000BB">$dom </font><font color="#007700">= </font><font color="#0000BB">domxml_open_mem</font><font color="#007700">(</font><font color="#0000BB">$xmlstr</font><font color="#007700">)) {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"Error while parsing the document\n"</font><font color="#007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;exit;<br />}<br /><br /></font><font color="#0000BB">$root </font><font color="#007700">= </font><font color="#0000BB">$dom</font><font color="#007700">-&gt;</font><font color="#0000BB">document_element</font><font color="#007700">();<br /><br /></font><font color="#0000BB">$buffer </font><font color="#007700">= </font><font color="#DD0000">'&lt;html'</font><font color="#007700">;<br />if (</font><font color="#0000BB">$root</font><font color="#007700">-&gt;</font><font color="#0000BB">has_attribute</font><font color="#007700">(</font><font color="#DD0000">'language'</font><font color="#007700">)) {<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$buffer </font><font color="#007700">.= </font><font color="#DD0000">'lang="' </font><font color="#007700">. </font><font color="#0000BB">$root</font><font color="#007700">-&gt;</font><font color="#0000BB">get_attribute</font><font color="#007700">(</font><font color="#DD0000">'language'</font><font color="#007700">) . </font><font color="#DD0000">'"'</font><font color="#007700">;<br />}<br /></font><font color="#0000BB">$buffer </font><font color="#007700">.= </font><font color="#DD0000">'&gt;'</font><font color="#007700">;<br /><br /></font><font color="#0000BB">?&gt;</font>
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</code></TD
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>
  </P
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><H2
>Migrating to PHP 5</H2
><P
>&#13;   Use <A
HREF="function.dom-domelement-hasattribute.html"
>DOMElement-&#62;hasAttribute()</A
>.
  </P
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