DOMDocument::createComment()函数是PHP中的内置函数,用于创建类createComment的新实例。
用法:
DOMComment DOMDocument::createComment( string $data )
参数:该函数接受包含注释节点内容的单个参数$data。
返回值:如果成功,此函数返回新的DOMComment对象,如果失败,则返回FALSE。
以下示例程序旨在说明PHP中的DOMDocument::createComment()函数:
程序1:
<?php
// Create a new DOMDocument
$domDocument = new DOMDocument('1.0', 'iso-8859-1');
// Use createComment() function to add a new comment node
$domComment = $domDocument->createComment('GeeksforGeeks');
// Append element to the document
$domDocument->appendChild($domComment);
// Save the XML file and display it
echo $domDocument->saveXML();
?>
输出:
<?xml version="1.0" encoding="iso-8859-1"?> <!--GeeksforGeeks-->
程序2:
<?php
// Create a new DOMDocument
$domDocument = new DOMDocument('1.0', 'iso-8859-1');
// Use createComment() function to add a new comment node
$domComment1 = $domDocument->createComment('Starting XML document file');
$domComment2 = $domDocument->createComment('Ending XML document file');
// Use createElement() function to add a new element node
$domElement1 = $domDocument->createElement('organization');
$domElement2 = $domDocument->createElement('name', 'GeeksforGeeks');
$domElement3 = $domDocument->createElement('address', 'Noida');
$domElement4 = $domDocument->createElement('email', 'abc@geeksforgeeks.org');
// Append element to the document
$domDocument->appendChild($domComment1);
$domDocument->appendChild($domElement1);
$domElement1->appendChild($domElement2);
$domElement1->appendChild($domElement3);
$domElement1->appendChild($domElement4);
$domDocument->appendChild($domComment2);
// Save the XML file and display it
echo $domDocument->saveXML();
?>
输出:
<?xml version="1.0" encoding="iso-8859-1"?> <!--Starting XML document file--> <organization> <name>GeeksforGeeks</name> <address>Noida</address> <email>abc@geeksforgeeks.org</email> </organization> <!--Ending XML document file-->
参考: https://www.php.net/manual/en/domdocument.createcomment.php
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