Php/docs/tidynode.iscomment
tidyNode::isComment
(PHP 5, PHP 7)
tidyNode::isComment — Checks if a node represents a comment
说明
public tidyNode::isComment ( ) : bool
Tells if the node is a comment.
返回值
Returns true if the node is a comment, false otherwise.
范例
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); } }}?>
以上例程会输出：
# comment node #1 <!-- Comments -->
