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PHP

Checks if a node is part of a HTML document


tidyNode::isHtml

(PHP 5 >= 5.0.1)

tidyNode::isHtmlChecks if a node is part of a HTML document

Description

bool tidyNode::isHtml ( void )

Tells if the node is part of HTML document.

Return Values

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

Examples

Example #1 Extract HTML code from a mixed HTML document

<?php

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

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

<%
  /* ASP code */
  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);
        }
    }
}

?>

The above example will output:

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

Notes

Note:

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



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