Checks if a node is part of a HTML document

# tidyNode::isHtml

(PHP 5, PHP 7)

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

### Descrierea

public tidyNode::isHtml ( void ) : bool

Tells if the node is part of HTML document.

### Valorile întoarse

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

### Exemple

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);
}
}
}
?>`

Exemplul de mai sus va afișa:

    # 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