| XML stands for EXtensible Markup Language and it is | | | | <image> |
| a simplified subset of Standard Generalized Markup | | | | <title>SoftArea51 - latest XML & CSS |
| Language (SGML). Its primary purpose is to facilitate | | | | Utilities software for Windows</title> |
| the sharing of data across different information | | | | <url> |
| systems, particularly systems connected via the | | | | <link> |
| Internet. RSS is a Web content syndication format. | | | | <description>Try and buy latest XML & |
| Its name is an acronym for Really Simple Syndication. | | | | CSS Utilities software for Windows< |
| In other words, RSS is a lightweight XML format | | | | description> |
| designed for sharing headlines and other Web | | | | </image> |
| content. More details about RSS 2.0 specification can | | | | <item> |
| be found at Very often people want to read rss files | | | | <title>Feed Mix</title> |
| and display the content on their site using a custom | | | | <link> |
| layout. This article represents a complete guide to | | | | <description>Feed Mix is a feature-rich RSS |
| the entire process of parsing RSS 2.0 files using PHP. | | | | editor with the unique ability to create a new RSS |
| Requirements: In order to be able to test the code in | | | | feed from several others that already exist...< |
| this tutorial we need to have installed a web server | | | | description> |
| (I am using Apache: configured with support for PHP | | | | </item> |
| ( You can find lots of articles and tutorials on the | | | | <item> |
| web on how to install Apache and PHP. Available | | | | <title>RSS Submit</title> |
| method for parsing an XML file. Currently there are | | | | <link> |
| two methods used by developers to read XML files, | | | | <description>RSS Submit is the most powerful |
| no matter what the programming language might be: | | | | RSS feed promotion tool available...< |
| SAX (Simple API for XML) and DOM (Document | | | | description> |
| Object Model). I will shortly describe each of these | | | | </item> |
| methods and finally choose the best for us. SAX | | | | <item> |
| (Simple API for XML) is an event based API. Every | | | | <title>PAD-Script</title> |
| time a tag is opened or closed, or any time the | | | | <link> |
| parser finds some text, it makes callbacks to | | | | <description>Avoid having to update all your |
| user-defined functions for each event with the node | | | | PAD files whenever the PAD format changes...< |
| or text information. The advantage of a SAX parser | | | | description> |
| is that it's really lightweight. The parser doesn't keep | | | | </item> |
| anything in memory for very long, so it can be used | | | | <item> |
| for extremely large files. The disadvantage is that | | | | <title>PAD Data Extractor Tool</title> |
| writing SAX parser event function can take some | | | | <link> |
| time and coding experience. The DOM (Document | | | | <description>Data Doctor XML PAD information |
| Object Model) defines a standard way for accessing | | | | extractor software tools extract important data |
| and manipulating XML documents. The DOM presents | | | | from online website XML file...</description> |
| an XML document as a tree-structure (a node tree), | | | | </item> |
| with the elements, attributes, and text defined as | | | | </channel> |
| nodes. An API implementing DOM standard will read | | | | </rss> |
| the entire XML document into memory and provide a | | | | In order to get the useful data from the RSS file we |
| set of functions for manipulating the data. The | | | | need to loop through the item nodes and extract the |
| drawback of this powerful method is that is not | | | | information we need. Below you can find the script |
| recommended for large XML documents, which would | | | | for parsing the above RSS feeds: |
| take too much memory to build the model of the | | | | <?php |
| document. Because usually people are dealing with | | | | $doc = new DOMDocument(); |
| normal size files and not everybody has the | | | | $doc->load(' |
| necessary time or skills to write an entire SAX parser | | | | $arrFeeds = array();foreach |
| we'll use the DOM method. So let's get started. As a | | | | ($doc->getElementsByTagName('item') as $node) |
| RSS example we'll use the following file: A part of | | | | {array_push($arrFeeds, array ( 'title' => |
| this file is given below. | | | | >nodeValue, |
| <?xml version=\"1.0\" encoding=\"UTF-8\"?> | | | | 'description' => |
| <rss version=\"2.0\"> | | | | em(0)->nodeValue, |
| <channel> | | | | 'link' => |
| <title>SoftArea51 - latest XML & CSS | | | | gt;nodeValue, |
| Utilities software for Windows</title> | | | | 'date' => |
| <link> | | | | (0)->nodeValue |
| <description>Try and buy latest XML & | | | | )); |
| CSS Utilities software for Windows< | | | | } |
| description> | | | | ? |
| <language>en-us</language> | | | | |