PHP Dokumentation: Tidynode istext
12. Januar 2010 von werner
tidyNode::isText
(PHP 5 >= 5.0.1)
tidyNode::isText — Checks if a node represents text (no markup)
Beschreibung
bool tidyNode::isText ( void )
Tells if the node represents a text (without any markup).
Rückgabewerte
Returns TRUE if the node represent a text, FALSE otherwise.
Beispiele
Beispiel #1 Extract text 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(), 'text');function
get_nodes($node, $node_type) {
// check if the current node is of requested type
if($node->{"is$node_type"}()) {
echo "\n\n# $node_type node #" . ++$GLOBALS['num'] . "\n";
echo $node->value;
}
// check if the current node has childrens
if($node->hasChildren()) {
foreach($node->child as $child) {
get_nodes($child, $node_type);
}
}
}?>Das oben gezeigte Beispiel erzeugt folgendeAusgabe:
# text node #1Hello World# text node #2Outside HTML
Anmerkungen
Hinweis: This function was named tidy_node::is_text() in PHP 4/Tidy 1.
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