Php/docs/domprocessinginstruction.construct
DOMProcessingInstruction::__construct
(PHP 5, PHP 7)
DOMProcessingInstruction::__construct — Creates a new DOMProcessingInstruction object
说明
public DOMProcessingInstruction::__construct
( string $name
[, string $value
] )
Creates a new DOMProcessingInstruction object. This object is read only. It may be appended to a document, but additional nodes may not be appended to this node until the node is associated with a document. To create a writeable node, use DOMDocument::createProcessingInstruction.
参数
name- The tag name of the processing instruction.
value- The value of the processing instruction.
范例
Example #1 Creating a new DOMProcessingInstruction object
<?php$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(); ?>
以上例程会输出：
<?xml version="1.0" encoding="UTF-8"?> <html><body><?php echo "Hello World"; ?></body></html>
