PHP读取XML
books.xml文件：代码
<books>
<book>
<author>Jack Herrington</author>
<title>PHP Hacks</title>
<publisher>O'Reilly</publisher>
</book>
<book>
<author>Jack Herrington</author>
<title>Podcasting Hacks</title>
<publisher>O'Reilly</publisher>
</book>
</books>
1.DOMDocument方法
代码
1 <?php
2 $doc = new DOMDocument();
3 $doc->load( 'books.xml' );
4 $books = $doc->getElementsByTagName( "book" );
5 foreach( $books as $book )
6 {
7 $authors = $book->getElementsByTagName( "author" );
8 $author = $authors->item(0)->nodeValue;
9
10 $publishers = $book->getElementsByTagName( "publisher" );
11 $publisher = $publishers->item(0)->nodeValue;
12
13 $titles = $book->getElementsByTagName( "title" );
14 $title = $titles->item(0)->nodeValue;
15
16 echo "$title - $author - $publisher\n";
17 echo "<br>";
18 }
19 ?>
2.用 SAX 解析器读取 XML
代码
1 <?php
2 $g_books = array();
3 $g_elem = null;
4
5 function startElement( $parser, $name, $attrs )
6 {
7 global $g_books, $g_elem;
8 if ( $name == 'BOOK' ) $g_books []= array();
9 $g_elem = $name;
10 }
11
12 function endElement( $parser, $name )
13 {
14 global $g_elem;
15 $g_elem = null;
16 }
17
18 function textData( $parser, $text )
19 {
20 global $g_books, $g_elem;
21 if ( $g_elem == 'AUTHOR' ||
22 $g_elem == 'PUBLISHER' ||
23 $g_elem == 'TITLE' )
24 {
25 $g_books[ count( $g_books ) - 1 ][ $g_elem ] = $text;
26 }
27 }
28
29 $parser = xml_parser_create();
30
31 xml_set_element_handler( $parser, "startElement", "endElement" );
32 xml_set_character_data_handler( $parser, "textData" );
33
34 $f = fopen( 'books.xml', 'r' );
35
36 while( $data = fread( $f, 4096 ) )
37 {
38 xml_parse( $parser, $data );
39 }
40
41 xml_parser_free( $parser );
42
43 foreach( $g_books as $book )
44 {
45 echo $book['TITLE']." - ".$book['AUTHOR']." - ";
46 echo $book['PUBLISHER']."\n";
47 }
48 ?>
3.用正则表达式解析 XML
代码
1 <?php
2 $xml = "";
3 $f = fopen( 'books.xml', 'r' );
4 while( $data = fread( $f, 4096 ) ) {
5 $xml .= $data;
6 }
7 fclose( $f );
8
9 preg_match_all( "/\<book\>(.*?)\<\/book\>/s", $xml, $bookblocks );
10
11 foreach( $bookblocks as $block )
12 {
13 preg_match_all( "/\<author\>(.*?)\<\/author\>/", $block, $author );
14 preg_match_all( "/\<title\>(.*?)\<\/title\>/", $block, $title );
15 preg_match_all( "/\<publisher\>(.*?)\<\/publisher\>/", $block, $publisher );
16 echo( $title." - ".$author." - ".$publisher."\n" );
17 }
18 ?>
4.解析XML到数 组
代码
1 <?php
2 $data = "<root><line /><content language=\"gb2312\">简单的XML数据</content></root>";
3 $parser = xml_parser_create(); //创建解析器
4 xml_parse_into_struct($parser, $data, $values, $index); //解析到数组
5 xml_parser_free($parser); //释放资源
6
7 //显示数组结构
8 echo "\n索引数组\n";
9 print_r($index);
10 echo "\n数据数组\n";
11 print_r($values);
12 ?>
5.检查XML是否有效
代码
1 <?php
2 //创建XML解析器
3 $xml_parser = xml_parser_create();
4
5 //使用大小写折叠来保证能在元素数组中找到这些元素名称
6 xml_parser_set_option($xml_parser, XML_OPTION_CASE_FOLDING, true);
7
8 //读取XML文件
9 $xmlfile = "bb.xml";
10 if (!($fp = fopen($xmlfile, "r")))
11 {
12 die("无法读取XML文件$xmlfile");
13 }
14
15 //解析XML文件
16 $has_error = false; //标志位
17 while ($data = fread($fp, 4096))
18 {
19 //循环地读入XML文档，只到文档的EOF，同时停止解析
20 if (!xml_parse($xml_parser, $data, feof($fp)))
21 {
22 $has_error = true;
23 break;
24 }
25 }
26
27 if($has_error)
28 {
29 echo "该XML文档是错误的！<br />";
30
31 //输出错误行，列及其错误信息
32 $error_line = xml_get_current_line_number($xml_parser);
33 $error_row = xml_get_current_column_number($xml_parser);
34 $error_string = xml_error_string(xml_get_error_code($xml_parser));
35
36 $message = sprintf("［第%d行，%d列］：%s",
37 $error_line,
38 $error_row,
39 $error_string);
40 echo $message;
41 }
42 else
43 {
44 echo "该XML文档是结构良好的。";
45 }
46
47 //关闭XML解析器指针，释放资源
48 xml_parser_free($xml_parser);
49 ?>
6.可用于精确的读取XML
test.xml
代码
1 <?xml version="1.0" encoding="UTF-8" ?>
2 <SBMP_MO_MESSAGE>
3 <CONNECT_ID>100</CONNECT_ID>
4 <MO_MESSAGE_ID>123456</MO_MESSAGE_ID>
5 <RECEIVE_DATE>20040605</RECEIVE_DATE>
6 <RECEIVE_TIME>153020</RECEIVE_TIME>
7 <GATEWAY_ID>1</GATEWAY_ID>
8 <VALID>1</VALID>
9 <CITY_CODE>010</CITY_CODE>
10 <CITY_NAME>北京</CITY_NAME>
11 <STATE_CODE>010</STATE_CODE>
12 <STATE_NAME>北京</STATE_NAME>
13 <TP_PID>0</TP_PID>
14 <TP_UDHI>0</TP_UDHI>
15 <MSISDN>15933626501</MSISDN>
16 <MESSAGE_TYPE>8</MESSAGE_TYPE>
17 <MESSAGE>5618常年供应苗木，品种有玉兰、黄叶杨等。联系人：张三，电话：1234567890。</MESSAGE>
18 <LONG_CODE>100</LONG_CODE>
19 <SERVICE_CODE>9588</SERVICE_CODE>
20 </SBMP_MO_MESSAGE>
21 test.php:
22 <?php
23 $myData = array();
24 $file = file_get_contents("test.xml");
25 if(strpos($file, '<?xml') > -1) {
26 try {
27 //加载解析xml
28 $xml = simplexml_load_string($file);
29 if($xml) {
30 //echo $this->result;
31 //获取节点值
32 $CONNECT_ID = $xml->CONNECT_ID;
33 $MO_MESSAGE_ID = $xml->MO_MESSAGE_ID;
34 $RECEIVE_DATE = $xml->RECEIVE_DATE;
35 $RECEIVE_TIME = $xml->RECEIVE_TIME;
36 $GATEWAY_ID = $xml->GATEWAY_ID;
37 $VALID = $xml->VALID;
38 $CITY_CODE = $xml->CITY_CODE;
39 $CITY_NAME = $xml->CITY_NAME;
40 $STATE_CODE = $xml->CITY_CODE;
41 $STATE_NAME = $xml->STATE_NAME;
42 $TP_PID = $xml->TP_PID;
43 $TP_UDHI = $xml->TP_UDHI;
44 $MSISDN = $xml->MSISDN;
45 $MESSAGE_TYPE = $xml->MESSAGE_TYPE;
46 $MESSAGE = $xml->MESSAGE;//短信
47 $LONG_CODE = $xml->LONG_CODE;
48 $SERVICE_CODE = $xml->SERVICE_CODE;
49 preg_match("/(561)\d{1,2}/", $MESSAGE, $code);
50 switch($code) {
51 case 5618 :
52 $myData = $MESSAGE;
53 break;
54 default :
55 $myData[] = '没有短消息。';
56 break;
57 }
58
59 } else {
60 echo "加载xml文件错误。";
61 }
62
63 } catch(exception $e){
64 print_r($e);
65 }
66
67 } else {
68 echo "没有该XML文件。";
69 }
70
71 echo "<pre>";
72 print_r($myData);
73 echo "<hr>";
74 echo $myData;
75 ?>
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