tidyNode::isHtml()
(PHP 5, PHP 7)
检查节点是否是HTML文档的一部分
说明
public tidyNode::isHtml(void): bool
返回值
Returns TRUE
if the node is part of a HTML document,FALSE
otherwise.
范例
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); } } } ?>
以上例程会输出:
# 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
<?php echo '<title>title</title>'; ?>
# html node #4
<#
/* JSTE code */
alert('Hello World');
#>
# html node #5
<title></title>
# html node #6
<body>
<?php
// PHP code
echo 'hello world!';
?><%
/* ASP code */
response.write("Hello World!")
%><!-- Comments -->
Hello WorldOutside HTML
</body>
# html node #7
<?php
// PHP code
echo 'hello world!';
?>
# html node #8
<%
/* ASP code */
response.write("Hello World!")
%>
# html node #9
<!-- Comments -->
# html node #10
Hello World
# html node #11
Outside HTML