tidyNode::isHtml

(PHP 5 >= 5.0.1)

tidyNode::isHtml — Checks if a node is part of a HTML document

说明

bool tidyNode::isHtml ( void )

Tells if the node is part of HTML document.

返回值

Returns TRUE if the node is part of a HTML document, FALSE otherwise.

范例

Example #1 Extract HTML code from a mixed HTML document

  <?php

$html  = <<< HTML
 <html><head>
<?php echo '<title>title</title>'; ?>
<# 
  
  alert('Hello World'); 
#>
</head>
<body>

<?php
  // PHP code
  echo 'hello world!';
?>

<%
  
  response.write("Hello World!")
%>

<!-- Comments -->
Hello World
</body></html>
Outside HTML
 HTML;


 $tidy  =  tidy_parse_string ( $html );
 $num  =  0 ;

 get_nodes ( $tidy -> html ());

function  get_nodes ( $node ) {
     // check if the current node is of requested type
     if( $node -> isHtml ()) {
        echo  "\n\n# html node #"  . ++ $GLOBALS [ 'num' ] .  "\n" ;
        echo  $node -> value ;
    }

     // check if the current node has childrens
     if( $node -> hasChildren ()) {
        foreach( $node -> child  as  $child ) {
             get_nodes ( $child );
        }
    }
}

 ?>

以上例程会输出：

# html node #1
<html>
<head>
<?php echo '<title>title</title>'; ?><# 
  
  alert('Hello World'); 
#>
<title></title>
</head>
<body>
<?php
  // PHP code
  echo 'hello world!';
?><%
  
  response.write("Hello World!")
%><!-- Comments -->
Hello WorldOutside HTML
</body>
</html># html node #2
<head>
<?php echo '<title>title</title>'; ?><# 
  
  alert('Hello World'); 
#>
<title></title>
</head># html node #3
<?php echo '<title>title</title>'; ?># html node #4
<# 
  
  alert('Hello World'); 
#># html node #5
<title></title># html node #6
<body>
<?php
  // PHP code
  echo 'hello world!';
?><%
  
  response.write("Hello World!")
%><!-- Comments -->
Hello WorldOutside HTML
</body># html node #7
<?php
  // PHP code
  echo 'hello world!';
?># html node #8
<%
  
  response.write("Hello World!")
%># html node #9
<!-- Comments --># html node #10
Hello World# html node #11
Outside HTML

注释

Note:

This function was named tidy_node::is_html() in PHP 4/Tidy 1.