XMLWriter::setIndent

xmlwriter_set_indent

(PHP 5 >= 5.1.2, PHP 7, PHP 8, PECL xmlwriter >= 0.1.0)

XMLWriter::setIndent -- xmlwriter_set_indent — Toggle indentation on/off

说明

面向对象风格

public XMLWriter::setIndent(bool $enable): bool

过程化风格

xmlwriter_set_indent(XMLWriter $writer, bool $enable): bool

Toggles indentation on or off.

参数

xmlwriter

仅用于过程调用。被修改的 XMLWriter 实例对象。此资源来自于对 xmlwriter_open_uri() 或 xmlwriter_open_memory() 的调用。

enable

Whether indentation is enabled.

返回值

成功时返回 true， 或者在失败时返回 false。

更新日志

版本 说明
8.0.0 现在 writer 需要 XMLWriter 实例， 之前需要的是 resource。

示例

示例 #1 XMLWriter::setIndent() and mixed Content

Enabling indentation is not suitable for mixed content, because the indent string is also inserted before inline elements.

<?php
$writer = new XMLWriter();
$writer->openMemory();
$writer->setIndent(2);
$writer->startDocument();
$writer->startElement('p');
$writer->text('before');
$writer->writeElement('a', 'element');
$writer->text('after');
$writer->endElement();
$writer->endDocument();
echo $writer->outputMemory();
?>

以上示例会输出：

<?xml version="1.0"?>
<p>before <a>element</a>
after</p>

注释

注意:

The indent is reset when an xmlwriter is opened.

参见