tidyNode::isHtml

(PHP 5, PHP 7, PHP 8)

tidyNode::isHtmlChecks if a node is an element node

Descrizione

public tidyNode::isHtml(): bool

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

Elenco dei parametri

Questa funzione non contiene parametri.

Valori restituiti

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

Log delle modifiche

Versione Descrizione
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.

Esempi

Example #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);
        }
    }
}

?>

Il precedente esempio visualizzerĂ :

# 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>

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