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[1] 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( $title[1][0]." - ".$author[1][0]." - ".$publisher[1][0]."\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[0]) { 51 case 5618 : 52 $myData[message] = $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[message]; 75 ?>