php 使用expat方式解析xml文件操作示例

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：

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<? 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：

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<?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