PHP Velho Oeste 2024

tidyNode::isComment

(PHP 5, PHP 7, PHP 8)

tidyNode::isCommentChecks if a node represents a comment

Description

public tidyNode::isComment(): bool

Tells if the node is a comment.

Parameters

This function has no parameters.

Return Values

Returns true if the node is a comment, false otherwise.

Examples

Example #1 Extract comments 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($node->isComment()) {
echo
"\n\n# comment node #" . ++$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:

# comment node #1
<!-- Comments -->

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