PHP parsing XML Method Example detailed _php skill

This article describes the PHP parsing XML method in detail in the form of an instance. Share to everyone for your reference. The specific analysis is as follows:

books.xml files are as follows:

<?xml version= "1.0" encoding= "iso-8859-1"?>
<bookstore>
 <book category= "Children" >
 <title lang= "en" >harry potter</title>
 <author>j K. rowling</author>
 <year> 2005</year>
 <price>29.99</price>
 </book>
 <book category= "Cooking" >
 <title lang= "en" >everyday italian</title>
 <author>giada De laurentiis</author>
 <year>2005</year>
 <price>30.00</price>
 </book>
 <book category= "Web" cover= "Paperback" >
 <title lang= "en" >learning xml</title>
 <author> Erik T. ray</author>
 <year>2003</year>
 <price>39.95</price>
 </ Book>
</bookstore>

1. DOM Parsing xml

<?php
 //Create a DOMDocument object
 $doc =new domdocument ();
 Load XML file
 $doc->load ("books.xml");
 Get all book tags
 $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. " <br> ";
  echo "Author:". $author. " <br> ";
  echo "Year:". $year. " <br> ";
  echo "Price:". $price. " <br> ";
  echo "***********************************<br>";
>

2, Xml_parse_into_struct

Create a parser, parse the XML data into an array, release the parser, and then extract the desired value from the array.

 <?php/Read XML file $file =" books.xml ";
 $data = file_get_contents ($file);
 Create parser $parser = Xml_parser_create ();
 Parsing XML data into an array of xml_parse_into_struct ($parser, $data, $vals, $index);
 Release the parser xml_parser_free ($parser);
 Array processing $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;
  $t + +;
 } break;
 } echo "<pre>";
 Print_r ($arr); echo "</pre>";?> 

3. Read XML-----XML simple API (sax) parser with SAX parser

<?php
 $file = "books.xml";
 $xml = Simplexml_load_file ($file);
 echo "<pre>";
 Print_r ($xml);
 echo "</pre>";
? >

I hope this article will help you with your PHP program design.