PHP Classes
elePHPant
Icontem

File: examples/demo_08.php

Recommend this page to a friend!
Stumble It! Stumble It! Bookmark in del.icio.us Bookmark in del.icio.us
  Classes of J.  >  HTML SQL  >  examples/demo_08.php  >  Download  
File: examples/demo_08.php
Role: Example script
Content type: text/plain
Description: Example 8 - Shows how to parse a RSS/XML file with htmlSQL
Class: HTML SQL
Parse and extract information from HTML using SQL
Author: By
Last change:
Date: 9 years ago
Size: 2,641 bytes
 

Contents

Class file image Download
<?php

   
/*
    ** htmlSQL - Example 8
    **
    ** Shows how to parse a RSS/XML file with htmlSQL
    */

   
include_once("../snoopy.class.php");
    include_once(
"../htmlsql.class.php");
   
   
$wsql = new htmlsql();
   
   
// connect to the RSS URL (this URL contains new snippets from my codedump project)
   
if (!$wsql->connect('url', 'http://codedump.jonasjohn.de/rss/')){
        print
'Error while connecting: ' . $wsql->error;
        exit;
    }
   
   
/* execute a query:
      
       select the text attribute (alias for the tag content) from the <item> tag
    */
   
if (!$wsql->query('SELECT text FROM item')){
        print
"Query error: " . $wsql->error;
        exit;
    }

   
// fetch all results as objects:
   
foreach($wsql->fetch_objects() as $obj){
       
       
// create a new htmlsql object:
       
$sub_wsql = new htmlsql();
       
       
// connect to the <item> content:
       
$sub_wsql->connect('string', $obj->text);
           
       
// fetch all attributes of all tags:
       
if (!$sub_wsql->query('SELECT * FROM *')){
            print
"Query error: " . $wsql->error;
            exit;
        }
       
       
// this "special" function converts tagnames to keys
       
$sub_wsql->convert_tagname_to_key();
       
       
/* this function converts an array that looks like this:
       
            $array[0]['tagname'] = 'title';
            $array[0]['text'] = 'example 1';
           
            $array[1]['tagname'] = 'link';
            $array[1]['text'] = 'http://www.example.org/';
           
            $array[2]['tagname'] = 'description';
            $array[2]['text'] = 'description bla';
            $array[2]['fulltext'] = '1'; // additional attribute
           
            -> to:
           
            $array['title']['text'] = 'example 1';
           
            $array[1]['link']['text'] = 'http://www.example.org/';
           
            $array[2]['description']['text'] = 'description bla';
            $array[2]['description']['fulltext'] = '1'; // additional attribute
           
            this makes the array easier to access
           
        */
       
       
        // fetch item as array:
       
$item = $sub_wsql->fetch_array();
               
       
// format the extracted links as HTML links and output them:
       
print "<a href=\"" . $item['link']['text'] . "\">";
        print
$item['title']['text'] . "</a><br/>\n";
       
       
// also available:
        // description, pubDate
       
       
   
}
   
?>