XMLWriter::openMemory

xmlwriter_open_memory

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

XMLWriter::openMemory -- xmlwriter_open_memory — Create new xmlwriter using memory for string output

说明

面向对象风格

XMLWriter::openMemory ( void ) : bool

过程化风格

xmlwriter_open_memory ( void ) : resource

Creates a new XMLWriter using memory for string output.

参数

返回值

面向对象风格: 成功时返回 TRUE，或者在失败时返回 FALSE。

过程化风格: Returns a new xmlwriter 资源(resource) for later use with the xmlwriter functions on success, FALSE on error.

参见

XMLWriter::openUri() - Create new xmlwriter using source uri for output

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User Contributed Notes 2 notes

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prashant at prashantpatil dot net ¶

9 years ago


Here is an simple example of using openMemory. This is particularly useful when you are handling a large amount of data and you want to split the xml creation in batches.

<?php
$batchSize = 25;
$xmlWriter = new XMLWriter();
$xmlWriter->openUri('php://output');
$xmlWriter->setIndent(true);
if($xmlWriter)
{
  $xmlWriter->startDocument('1.0','UTF-8');
  $xmlWriter->startElement('Books');
  
  $memXmlWriter = new XMLWriter();
  
  $memXmlWriter->openMemory();
  $memXmlWriter->setIndent(true);
  
  for($i=1;$i<=1000;$i++)
  {
    $memXmlWriter->startElement('book');
      $memXmlWriter->text('book_'.$i);
    $memXmlWriter->endElement();
    
    if($i%5 == 0)
    {
      $batchXmlString = $memXmlWriter->outputMemory(true);
      $xmlWriter->writeRaw($batchXmlString);
    }
  }
  $memXmlWriter->flush();
  unset($memXmlWriter);
  $xmlWriter->endElement();
  $xmlWriter->endDocument();  
}
?>

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-4

alvaro at demogracia dot com ¶

7 years ago


A simple usage example:

<?php
header('Content-type: text/xml; charset=UTF-8');

$oXMLWriter = new XMLWriter;
$oXMLWriter->openMemory();
$oXMLWriter->startDocument('1.0', 'UTF-8');

$oXMLWriter->startElement('test');
$oXMLWriter->text('Hello, World!');
$oXMLWriter->endElement();

$oXMLWriter->endDocument();
echo $oXMLWriter->outputMemory(TRUE);
?>

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官方地址：https://www.php.net/manual/en/function.xmlwriter-open-memory.php

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XMLWriter::openMemory

xmlwriter_open_memory

说明

参数

返回值

参见

User Contributed Notes 2 notes