PHP Australia Conference 2015

tidyNode::isComment

(PHP 5 >= 5.0.1)

tidyNode::isCommentChecks if a node represents a comment

Beschreibung

bool tidyNode::isComment ( void )

Tells if the node is a comment.

R├╝ckgabewerte

Returns TRUE if the node is a comment, FALSE otherwise.

Beispiele

Beispiel #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);
        }
    }
}

?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

# jste node #1
<# 
  /* JSTE code */
  alert('Hello World'); 
#>

Anmerkungen

Hinweis:

This function was named tidy_node::is_comment() in PHP 4/Tidy 1.

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