XMLWriter::startDocument

xmlwriter_start_document

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

XMLWriter::startDocument -- xmlwriter_start_document — Create document tag

说明

面向对象风格

XMLWriter::startDocument ([ string $version = 1.0 [, string $encoding = NULL [, string $standalone ]]] ) : bool

过程化风格

xmlwriter_start_document ( resource $xmlwriter [, string $version = 1.0 [, string $encoding = NULL [, string $standalone ]]] ) : bool

Starts a document.

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。
version: The version number of the document as part of the XML declaration.
encoding: The encoding of the document as part of the XML declaration.
standalone: yes or no.

返回值

成功时返回 TRUE，或者在失败时返回 FALSE。

参见

XMLWriter::endDocument() - End current document

add a note

User Contributed Notes 2 notes

down

msbmail at gmail dot com ¶

6 years ago


Some errors in generating the XML document are related to the format used to write the PHP file from which the XML is generated.

In Windows environments, be sure to save your documents in ANSI / ASCII and you will avoid many of them.

down

icepick dot pt at hotmail dot com ¶

10 years ago


I was having a very hard time triyng to use:

$writer->startDocument( '1.0' , 'Windows-1252' );

Somehow this caused the generation of an empty xml file, and I could not figure out why.
When all other efforts failed I asked for help to the team that developed the XMLwriter extension, and got a very quick reply as follows:

Quote:
==============================
Windows-1252 support is only available if libxml2 is link with iconv 
support (it usually is, but there are exceptions). I know on my Mac, the 
built in libxml2 doesnt provide iconv support - they go with some 
Unicode hack which doesnt provide it, so I had to build my own. It is 
built by default (and your code works) on my linux machines.
 
It is possible to create the XML without a declaration, which means you 
could add it manually, but if you use any characters that are differnt 
between UTF-8 and Windows-1252, the encoding would be wrong in the 
document, so do not recommend.
==============================

Then light was made on my head: I am using a linux server distribution that by default is still running PHP 4.3. A few months ago I decided to force the upgrade of PHP to the newest version 5.1.6 at that time, and that has brougth me the XMLwriter extension that I am now using. But clearly there are compatibility issues betwen the rest of the server's defaults and PHP 5 wich is probably why it's development team has not upgraded yet.

Let's hope all the remaining environments catch up with this extension. It is in fact most handy.

And in the meantime, I have figured out a (not recomended, obviously) workaroud that works for me:

Instead of using two parameters, I used only the first one: 

$writer->startDocument( '1.0" encoding="Windows-1252' );

this will output:

<?xml version="1.0" encoding="Windows-1252"?>

add a note

官方地址：https://www.php.net/manual/en/function.xmlwriter-start-document.php

有任何技术问题请点击这里网站运营推广招聘

IT PHP 编程语言 Linux 开发编程科技 Elasticsearch HTML/CSS/XML 网络 JAVA NoSQL 数据库面试 C/C++ Golang Git 算法操作系统正则表达式 Redis 互联网 MySql JavaScript 运维软件国际架构设计 Mac OS TCP/IP Excel Vim Windows Socket Oracle VR MongoDB Python 运营 MemCache 商业硬件电子娱乐设计 nginx 摄影游戏 WordPress HTTP 团建数码电器

php7 安装fileinfo扩展 preg_split — 通过一个正则表达式分隔字符串 php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题 [PHP] inet_pton/inet_ntop IP地址转换函数 array_multisort() 多字段排序 PHPMailer设置utf8 PHPMailer字符集CharSet ADORecordSet对象 adodb手册 PHP 8.1 [鸟哥]PHP_INT_MIN 和 -9223372036854775808 opcache预加载 Composer的Packagist资源 mysql面试题 [鸟哥]PHP FFI详解 - 一种全新的PHP扩展方式 PHP7添加redis扩展 PHP获取指定函数定义在哪个文件中及行号 PHP mkdir()写出来的权限与mode值不符合 Packagist / Composer 中国全量镜像 adodb连接mysql多个数据库的问题 PHPstorm 里面Terminal 不能使用 esc键吗退出编辑模式吗

略微加速

PHP官方手册 - 互联网笔记

XMLWriter::startDocument

xmlwriter_start_document

说明

参数

返回值

参见

User Contributed Notes 2 notes