php解析xml方法实例详解

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本文以实例形式详细讲述了PHP解析xml方法分享给大家供大家参考。具体分析如下:

books.xml文件如下:

J K. Rowling 2005 29.99 Giada De Laurentiis 2005 30.00 Erik T. Ray 2003 39.95

1、DOM解析XML

PHP;"> load("books.xml"); //获取所有的book标签 $bookDom=$doc->getElementsByTagName("book"); foreach($bookDom as $book){ $title = $book->getElementsByTagName("title")->item(0)->nodeValue; $author = $book->getElementsByTagName("author")->item(0)->nodeValue; $year = $book->getElementsByTagName("year")->item(0)->nodeValue; $price = $book->getElementsByTagName("price")->item(0)->nodeValue; echo "title:".$title."
"; echo "author:".$author."
"; echo "year:".$year."
"; echo "price:".$price ."
"; echo "***********************************
"; } ?>

2、xml_parse_into_struct

创建解析器,将xml数据解析到数组,释放解析器,再有就是从数组中提取想要的值。

PHP;"> PHP // 读取xml文件 $file = "books.xml"; $data = file_get_contents($file); // 创建解析器 $parser = xml_parser_create(); // 将 XML 数据解析到数组中 xml_parse_into_struct($parser,$data,$vals,$index); // 释放解析器 xml_parser_free($parser); // 数组处理 $arr = array(); $t=0; foreach($vals as $value) { $type = $value['type']; $tag = $value['tag']; $level = $value['level']; $attributes = isset($value['attributes'])?$value['attributes']:""; $val = isset($value['value'])?$value['value']:""; switch ($type) { case 'open': if ($attributes != "" || $val != "") { $arr[$t]['tag'] = $tag; $arr[$t]['attributes'] = $attributes; $arr[$t]['level'] = $level; $t++; } break; case "complete": if ($attributes != "" || $val != "") { $arr[$t]['tag'] = $tag; $arr[$t]['attributes'] = $attributes; $arr[$t]['val'] = $val; $arr[$t]['level'] = $level; $t++; } break; } } echo "
";
 print_r($arr);
 echo "
"; ?>

3、用 SAX 解析器读取 XML-----XML Simple API(SAX)解析器

PHP;"> PHP $file="books.xml"; $xml = simplexml_load_file($file); echo "
";
 print_r($xml);
 echo "
"; ?>

希望本文所述对大家的PHP程序设计有所帮助。

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