tidyNode::isText

(PHP 5, PHP 7, PHP 8)

tidyNode::isTextChecks if a node represents text (no markup)

说明

public tidyNode::isText(): bool

Tells if the node represents a text (without any markup).

参数

此函数没有参数。

返回值

Returns true if the node represent a text, false otherwise.

示例

示例 #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());

function
get_nodes($node) {

// check if the current node is of requested type
if($node->isText()) {
echo
"\n\n# text node #" . ++$GLOBALS['num'] . "\n";
echo
$node->value;
}

// check if the current node has childrens
if($node->hasChildren()) {
foreach(
$node->child as $child) {
get_nodes($child);
}
}
}

?>

以上示例会输出:

# text node #1
Hello World

# text node #2
Outside HTML

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