- PHP 手册
- 函数参考
- XML 操作
- XMLWriter
- XMLWriter 函数
XMLWriter::startDtd
xmlwriter_start_dtd
(PHP 5 >= 5.1.2, PHP 7, PECL xmlwriter >= 0.1.0)
XMLWriter::startDtd -- xmlwriter_start_dtd — Create start DTD tag
说明
面向对象风格
XMLWriter::startDtd ( string$qualifiedName
[, string $publicId
[, string $systemId
]] ) : bool
过程化风格
xmlwriter_start_dtd ( resource$xmlwriter
, string $qualifiedName
[, string $publicId
[, string $systemId
]] ) : bool
Starts a DTD.
参数
-
xmlwriter -
仅用于过程调用。被修改的 XMLWriter resource。此资源来自于对 xmlwriter_open_uri() 或 xmlwriter_open_memory() 的调用。
-
qualifiedName -
The qualified name of the document type to create.
-
publicId -
The external subset public identifier.
-
systemId -
The external subset system identifier.
返回值
成功时返回 TRUE， 或者在失败时返回 FALSE。
参见
- XMLWriter::endDtd() - End current DTD
- XMLWriter::writeDtd() - Write full DTD tag
User Contributed Notes 1 note
up down 0 joaner1206 at gmail dot com ¶7 years ago
If you will write a HTML document :
// $xml = new XMLWriter(); you know it and openURI()
<?php
// for HTML 5
$xml->startDTD('html');
// for XHTML 1.0
$xml->startDTD('html', '-//W3C//DTD XHTML 1.0 Strict//EN','http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'); // standards compliant
$xml->endDTD();
?>
it will be :
<!DOCTYPE html>
or <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN">
don't need to startDocument() .
add a note
官方地址：https://www.php.net/manual/en/function.xmlwriter-start-dtd.php