php 使用expat方式解析xml文件操作示例_PHP教程

php 使用expat方式解析xml文件操作示例

2021-09-18 16:28心鑫 PHP教程

这篇文章主要介绍了php 使用expat方式解析xml文件操作,结合实例形式分析了PHP使用expat方式解析xml文件具体步骤与相关操作技巧,需要的朋友可以参考下

本文实例讲述了php 使用expat方式解析xml文件操作。分享给大家供大家参考，具体如下：

test.xml：

				?

									<?xml version="1.0" encoding="UTF-8"?>

									<notes>

									 <note>

									 <to>George</to>

									 <from>John</from>

									 <heading>Reminder</heading>

									 <body>Don't forget the meeting!</body>

									 </note>

									 <note>

									 <to>George2</to>

									 <from>John2</from>

									 <heading>Reminder2</heading>

									 <body>Don't forget the meeting!2</body>

									 </note>

									 <instances>

									 <instance st="192.168.234.121" />

									 <instance st="192.168.234.28" />

									 </instances>

									</notes>

PHP文件：

				?

									<?php

									// Initialize the XML parser

									$parser = xml_parser_create();

									// Function to use at the start of an element

									function start($parser, $element_name, $element_attrs)

									{

									  switch ($element_name) {

									    case "NOTE":

									      echo "-- Note --<br />";

									      break;

									    case "TO":

									      echo "To: ";

									      break;

									    case "FROM":

									      echo "From: ";

									      break;

									    case "HEADING":

									      echo "Heading: ";

									      break;

									    case "BODY":

									      echo "Message: ";

									  }

									}

									// Function to use at the end of an element

									function stop($parser, $element_name)

									{

									  echo "<br />";

									}

									// Function to use when finding character data

									function char($parser, $data)

									{

									  echo $data;

									}

									// Specify element handler

									xml_set_element_handler($parser, "start", "stop");

									// Specify data handler

									xml_set_character_data_handler($parser, "char");

									// Open XML file

									// $fp = fopen("test.xml", "r");

									// Read data

									// while ($data = fread($fp, 10)) {

									// xml_parse($parser, $data, feof($fp)) or die(sprintf("XML Error: %s at line %d", xml_error_string(xml_get_error_code($parser)), xml_get_current_line_number($parser)));

									// }

									// fclose($fp);

									$data = file_get_contents("test.xml");

									xml_parse($parser, $data) or die(sprintf("XML Error: %s at line %d", xml_error_string(xml_get_error_code($parser)), xml_get_current_line_number($parser)));

									// Free the XML parser

									xml_parser_free($parser);

									?>

运行结果：

-- Note --
To: George
From: John
Heading: Reminder
Message: Don't forget the meeting!

-- Note --
To: George2
From: John2
Heading: Reminder2
Message: Don't forget the meeting!2

希望本文所述对大家PHP程序设计有所帮助。

原文链接：https://blog.csdn.net/proud2005/article/details/38779419