DOMProcessingInstruction->__construct()
(PHP 5)
DOMProcessingInstruction->__construct() — Creates a new DOMProcessingInstruction object
说明
DOMProcessingInstruction
__construct
( string $name
[, string $value
] )
Creates a new DOMProcessingInstruction object. This object is read only. It may be appended to a document, but additional nodes may not be appended to this node until the node is associated with a document. To create a writeable node, use DOMDocument->createProcessingInstruction().
参数
- name
-
The tag name of the processing instruction.
- value
-
The value of the processing instruction.
范例
Example#1 Creating a new DOMProcessingInstruction
<?php
$dom = new DOMDocument('1.0', 'UTF-8');
$html = $dom->appendChild(new DOMElement('html'));
$body = $html->appendChild(new DOMElement('body'));
$pinode = new DOMProcessingInstruction('php', 'echo "Hello World"; ');
$body->appendChild($pinode);
echo $dom->saveXML();
?>
上例将输出：
<?xml version="1.0" encoding="UTF-8"?> <html><body><?php echo "Hello World"; ?></body></html>
CDN