Checks if a node represents a comment

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- tidyNode
- Checks if a node represents a comment

# tidyNode::isComment

(PHP 5, PHP 7, PHP 8)

tidyNode::isComment — Checks 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$html = <<< HTML<html><head><?php echo '<title>title</title>'; ?><#   /* JSTE code */  alert('Hello World'); #></head><body><?php  // PHP code  echo 'hello world!';?><%  /* ASP code */  response.write("Hello World!")%><!-- Comments -->Hello World</body></html>Outside HTMLHTML;$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 -->