|  | 
 tidy_get_root    (PHP 5) tidy_get_root -- 
     Returns a tidyNode object representing the root of the tidy parse tree
    DescriptionProcedural style: tidyNode tidy_get_root  ( tidy object ) Object oriented style: tidyNode tidy->root  ( void  ) 
     Returns a tidyNode object representing the root of the tidy parse tree.
     
      | 例子 1. dump nodes | 
<?php
 $html = <<< HTML
 <html><body>
 
 <p>paragraph</p>
 <br/>
 
 </body></html>
 HTML;
 
 $tidy = tidy_parse_string($html);
 dump_nodes($tidy->root(), 1);
 
 
 function dump_nodes($node, $indent) {
 
 if($node->hasChildren()) {
 foreach($node->child as $child) {
 echo str_repeat('.', $indent*2) . ($child->name ? $child->name : '"'.$child->value.'"'). "\n";
 
 dump_nodes($child, $indent+1);
 }
 }
 }
 ?>
 | 
 上例将输出: | ..html
....head
......title
....body
......p
........"paragraph"
......br | 
 | 
 注: 本函数仅能用于
Zend Engine 2,这意味着  PHP >= 5.0.0。
 |  |