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
ps：这里再为大家提供几款关于xml操作的在线工具供大家参考使用：
在线xml/json互相转换工具：
在线格式化xml/在线压缩xml：
xml在线压缩/格式化工具：
xml代码在线格式化美化工具：
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