这篇文章主要介绍了php读取xml格式文件的方法,结合实例形式总结分析了php针对xml格式文件的读取、解析、加载、遍历等操作技巧,需要的朋友可以参考下
具体如下：
books.xml文件：
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1.DOMDocument方法
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load( 'books.xml' );
$books = $doc->getElementsByTagName( "book" );
foreach( $books as $book )
{
$authors = $book->getElementsByTagName( "author" );
$author = $authors->item(0)->nodeValue;
$publishers = $book->getElementsByTagName( "publisher" );
$publisher = $publishers->item(0)->nodeValue;
$titles = $book->getElementsByTagName( "title" );
$title = $titles->item(0)->nodeValue;
echo "$title - $author - $publisher\n";
echo "
";
}
?>
2.用 SAX 解析器读取 XML：
3.用正则表达式解析 XML：
(.*?)\<\/book\>/s", $xml, $bookblocks );
foreach( $bookblocks[1] as $block )
{
preg_match_all( "/\(.*?)\<\/author\>/", $block, $author );
preg_match_all( "/\(.*?)\<\/title\>/", $block, $title );
preg_match_all( "/\(.*?)\<\/publisher\>/", $block, $publisher );
echo( $title[1][0]." - ".$author[1][0]." - ".$publisher[1][0]."\n" );
}
?>
4.解析XML到数组
简单的XML数据 "; $parser = xml_parser_create(); //创建解析器 xml_parse_into_struct($parser, $data, $values, $index); //解析到数组 xml_parser_free($parser); //释放资源 //显示数组结构 echo "\n索引数组\n"; print_r($index); echo "\n数据数组\n"; print_r($values); ?>
5.检查XML是否有效
";
//输出错误行，列及其错误信息
$error_line = xml_get_current_line_number($xml_parser);
$error_row = xml_get_current_column_number($xml_parser);
$error_string = xml_error_string(xml_get_error_code($xml_parser));
$message = sprintf("［第%d行，%d列］：%s",
$error_line,
$error_row,
$error_string);
echo $message;
}
else
{
echo "该XML文档是结构良好的。";
}
//关闭XML解析器指针，释放资源
xml_parser_free($xml_parser);
?>
6.可用于精确的读取XML
test.xml
100 123456 20040605 153020 1 1 010 北京 010 北京 0 0 15933626501 8 5618常年供应苗木，品种有玉兰、黄叶杨等。联系人：张三，电话：1234567890。 100 9588
test.php:
-1) {
try {
//加载解析xml
$xml = simplexml_load_string($file);
if($xml) {
//echo $this->result;
//获取节点值
$CONNECT_ID = $xml->CONNECT_ID;
$MO_MESSAGE_ID = $xml->MO_MESSAGE_ID;
$RECEIVE_DATE = $xml->RECEIVE_DATE;
$RECEIVE_TIME = $xml->RECEIVE_TIME;
$GATEWAY_ID = $xml->GATEWAY_ID;
$VALID = $xml->VALID;
$CITY_CODE = $xml->CITY_CODE;
$CITY_NAME = $xml->CITY_NAME;
$STATE_CODE = $xml->CITY_CODE;
$STATE_NAME = $xml->STATE_NAME;
$TP_PID = $xml->TP_PID;
$TP_UDHI = $xml->TP_UDHI;
$MSISDN = $xml->MSISDN;
$MESSAGE_TYPE = $xml->MESSAGE_TYPE;
$MESSAGE = $xml->MESSAGE;//短信
$LONG_CODE = $xml->LONG_CODE;
$SERVICE_CODE = $xml->SERVICE_CODE;
preg_match("/(561)\d{1,2}/", $MESSAGE, $code);
switch($code[0]) {
case 5618 :
$myData[message] = $MESSAGE;
break;
default :
$myData[] = '没有短消息。';
break;
}
} else {
echo "加载xml文件错误。";
}
} catch(exception $e){
print_r($e);
}
} else {
echo "没有该XML文件。";
}
echo "";
print_r($myData);
echo "
";
echo $myData[message];
?>
以上就是本文的全部内容，希望对大家的学习有所帮助。
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