tidyNode::isHtml
PHP function
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(PHP 5, PHP 7, PHP 8)
Checks if a node is an element node
Description
tidyNode::isHtml(): bool
Tells if the node is an element node, but not the root node of the document.
Parameters Parameters
Return Values
Returns true if the node is an element node, but not the root node of the document, false otherwise.
Changelog
| Version | Description |
|---|---|
| 7.3.24, 7.4.12 | This function has been fixed to have reasonable behavior. Previously, almost any node was reported as being an HTML node. |
Examples
Extract HTML code from a mixed HTML document
php
<?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 $node->value;
}
// check if the current node has children
if($node->hasChildren()) {
foreach($node->child as $child) {
get_nodes($child);
}
}
}
?>The above example will output:
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
<title></title>
# html node #4
<body>
<?php
// PHP code
echo 'hello world!';
?><%
/* ASP code */
response.write("Hello World!")
%><!-- Comments -->
Hello WorldOutside HTML
</body>