PHP Manual
tidyNode
Checks if a node is an element node

tidyNode::isHtml

(PHP 5, PHP 7, PHP 8)

tidyNode::isHtml — Checks if a node is an element node

Beschreibung

public tidyNode::isHtml(): bool

Tells if the node is an element node, but not the root node of the document.

Parameter-Liste

Diese Funktion besitzt keine Parameter.

Rückgabewerte

Returns true if the node is an element node, but not the root node of the document, false otherwise.

Changelog

Version	Beschreibung
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.

Beispiele

Beispiel #1 Extract HTML code 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->isHtml()) {
        echo "\n\n# html 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:

# 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>