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>tidy_get_root</H1
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> (PHP 5)</P
>tidy_get_root --
Returns a tidyNode object representing the root of the tidy parse tree
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><H2
>Description</H2
><P
>Procedural style:</P
>tidyNode <B
CLASS="methodname"
>tidy_get_root</B
> ( tidy object )<BR
></BR
><P
>Object oriented style:</P
>tidyNode <B
CLASS="methodname"
>tidy->root</B
> ( void )<BR
></BR
><P
> Returns a tidyNode object representing the root of the tidy parse tree.
</P
><P
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>例 1. dump nodes</B
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><code><font color="#000000">
<font color="#0000BB"><?php<br /><br />$html </font><font color="#007700">= <<< HTML<br /></font><font color="#0000BB"><html><body><br /><br /><p>paragraph</p><br /><br/><br /><br /></body></html><br /></font><font color="#007700">HTML;<br /><br /></font><font color="#0000BB">$tidy </font><font color="#007700">= </font><font color="#0000BB">tidy_parse_string</font><font color="#007700">(</font><font color="#0000BB">$html</font><font color="#007700">);<br /></font><font color="#0000BB">dump_nodes</font><font color="#007700">(</font><font color="#0000BB">$tidy</font><font color="#007700">-></font><font color="#0000BB">root</font><font color="#007700">(), </font><font color="#0000BB">1</font><font color="#007700">);<br /><br /><br />function </font><font color="#0000BB">dump_nodes</font><font color="#007700">(</font><font color="#0000BB">$node</font><font color="#007700">, </font><font color="#0000BB">$indent</font><font color="#007700">) {<br /><br /> if(</font><font color="#0000BB">$node</font><font color="#007700">-></font><font color="#0000BB">hasChildren</font><font color="#007700">()) {<br /> foreach(</font><font color="#0000BB">$node</font><font color="#007700">-></font><font color="#0000BB">child </font><font color="#007700">as </font><font color="#0000BB">$child</font><font color="#007700">) {<br /> echo </font><font color="#0000BB">str_repeat</font><font color="#007700">(</font><font color="#DD0000">'.'</font><font color="#007700">, </font><font color="#0000BB">$indent</font><font color="#007700">*</font><font color="#0000BB">2</font><font color="#007700">) . (</font><font color="#0000BB">$child</font><font color="#007700">-></font><font color="#0000BB">name </font><font color="#007700">? </font><font color="#0000BB">$child</font><font color="#007700">-></font><font color="#0000BB">name </font><font color="#007700">: </font><font color="#DD0000">'"'</font><font color="#007700">.</font><font color="#0000BB">$child</font><font color="#007700">-></font><font color="#0000BB">value</font><font color="#007700">.</font><font color="#DD0000">'"'</font><font color="#007700">). </font><font color="#DD0000">"\n"</font><font color="#007700">;<br /><br /> </font><font color="#0000BB">dump_nodes</font><font color="#007700">(</font><font color="#0000BB">$child</font><font color="#007700">, </font><font color="#0000BB">$indent</font><font color="#007700">+</font><font color="#0000BB">1</font><font color="#007700">);<br /> }<br /> }<br />}<br /></font><font color="#0000BB">?></font>
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>上例将输出：</P
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>..html
....head
......title
....body
......p
........"paragraph"
......br</PRE
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>
</P
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><B
>注意: </B
>本函数仅能用于
Zend Engine 2，这意味着 PHP >= 5.0.0。</P
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