XMLWriter::endDtdAttlist()函数是PHP中的内置函数,用于结束当前DTD AttList。 DTD代表“文档类型定义”,它定义了XML文档的结构以及法律元素和属性。 DTD在网页中不可见,因为它们的作用类似于注释。在DTD中,使用ATTLIST声明来声明属性。
用法:
bool XMLWriter::endDtdAttlist( void )
参数:此函数不接受任何参数。
返回值:如果成功,此函数将返回TRUE,否则将返回FALSE。
以下示例说明了PHP中的XMLWriter::endDtdAttlist()函数:
范例1:
<?php
// Create a new XMLWriter instance
$writer = new XMLWriter();
// Create the output stream as PHP
$writer->openURI('php://output');
// Start the document
$writer->startDocument('1.0', 'UTF-8');
// Start the Dtd Attlist
$writer->startDtdAttlist('geeksforgeeks');
// End the Dtd Attlist
$writer->endDtdAttlist();
// End the document
$writer->endDocument();
?>
输出:
<?xml version="1.0" encoding="UTF-8"?> <!ATTLIST geeksforgeeks>
范例2:
<?php
// Create a new XMLWriter instance
$writer = new XMLWriter();
// Create the output stream as PHP
$writer->openURI('php://output');
// Start the document
$writer->startDocument('1.0', 'UTF-8');
// Start the Dtd Attlist
$writer->startDtdAttlist('This_is_not_visible_in_webpage');
// End the Dtd Attlist
$writer->endDtdAttlist();
// Add text to document
$writer->text('geeksforgeeks');
// End the document
$writer->endDocument();
?>
输出:
<?xml version="1.0" encoding="UTF-8"?> <!ATTLIST This_is_not_visible_in_webpage> geeksforgeeks
参考: https://www.php.net/manual/en/function.xmlwriter-end-dtd-attlist.php
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