Código PHP:
<% @Language="VBScript" %>
<%
'============================================================
' APP: TagCloud
' AUTHOR: © www.u229.no
' CREATED: October 2006
'============================================================
' ROUTINES:
' - Function ReadRSSTags()
' - Sub BubbleSort(byRef a)
'============================================================
Option Explicit
On Error Resume Next
With Response
.ExpiresAbsolute = #1/1/1980#
.AddHeader "cache-control", "no-cache, must-revalidate"
.AddHeader "pragma", "no-cache"
.AddHeader "Content-Type", "text/html; charset=UTF-8"
End With
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>TagCloud</title>
<style type="text/css">
#tagCloud {font-family: verdana; width: 300px; border: 1px solid gray; padding: 5px 0px 5px 0px; text-align: center; font-weight: bold;}
.tag1 {font-size: 12px;}
.tag2 {font-size: 18px;}
.tag3 {font-size: 24px;}
</style>
</head>
<body>
<h3>TAG CLOUD MADE FROM A BBC FEED:</h3>
<%
Dim m_sTags
Dim m_aTags
Dim m_sSmallWords
Dim m_sCurrent, m_sLast
Dim m_bMatch
Dim m_iWordCount
Dim m_sHTML
Dim i, iMax
'// READ THE RSS FILE AND REMOVE SOME COMMON CHARACTERS
m_sTags = Replace(Replace(Replace(Replace(Replace(Replace(ReadRSSTags, "?", ""), "!", ""), ".", ""), ",", ""), "-", ""), ":", "")
'// THESE ARE THE SMALL WORDS THAT WE DON'T CARE ABOUT. INCLUDE MORE WORDS IF YOU LIKE.
m_sSmallWords = " in a an and or but for to it that this those these all on off can will no not we will be more new up down over you they get one two three four five six seven eight nine ten nobody now back after yes no like "
'// STORE THE WORDS (TAGS) IN AN ARRAY
m_aTags = Split(m_sTags, " ")
m_iWordCount = 1
m_bMatch = False
'// SORT THE WORDS ALPHABETICALLY. THIS MAKES THEM EASIER TO COUNT.
Call BubbleSort(m_aTags)
m_sHTML = "<div id=""tagCloud"" title=""Hot topics right now"">"
iMax = UBound(m_aTags)
'// LOOP THE WORDS
For i = 0 To iMax
m_sCurrent = m_aTags(i)
'// WE FOUND A MATCH!
If m_sCurrent = m_sLast Then
m_bMatch = True
m_iWordCount = (m_iWordCount + 1)
Else
If m_bMatch Then
If m_iWordCount > 1 Then
If Not InStr(m_sSmallWords, LCase(m_sLast)) > 0 Then
'// THIS IS OUR SIMPLE WEIGHING ALGORITHM: WE DON'T CARE ABOUT WORDS APPEARING JUST ONE TIME.
If m_iWordCount = 2 Then m_sHTML = m_sHTML & "<span class=""tag1"">" & m_sLast & "</span> "
If m_iWordCount = 3 Then m_sHTML = m_sHTML & "<span class=""tag2"">" & m_sLast & "</span> "
If m_iWordCount > 3 Then m_sHTML = m_sHTML & "<span class=""tag3"">" & m_sLast & "</span> "
End If
End If
End If
m_iWordCount = 1
End If
m_sLast = m_sCurrent
Next
'// OUTPUT THE TAG CLOUD
Response.Write m_sHTML & "</div></body></html>"
'------------------------------------------------------------------------------------------------------------
' Comment: Load RSS file from disk.
'------------------------------------------------------------------------------------------------------------
Function ReadRSSTags()
On Error Resume Next
Dim oXML, oNode, oNodeList, sRetVal
Set oXML = CreateObject("MSXML2.DOMDocument.6.0")
If Err Then
On Error Resume Next
Set oXML = CreateObject("MSXML2.DOMDocument.3.0")
End If
With oXML
.async = False
If Not .Load(Server.MapPath("bbc.xml")) Then Set oXML = Nothing: Exit Function
End With
Set oNodeList = oXML.selectNodes("//item")
If oNodeList.length > 0 Then
For Each oNode In oNodeList
sRetVal = sRetVal & oNode.selectSingleNode("title").Text & Chr(32)
Next
End If
Set oNodeList = Nothing
Set oXML = Nothing
ReadRSSTags = sRetVal
End Function
'------------------------------------------------------------------------------------------------------------
' Comment: Sort the tags. http://www.4guysfromrolla.com/demos/bubblesort.asp
------------------------------------------------------------------------------------------------------------
Sub BubbleSort(ByRef a)
On Error Resume Next
Dim i, j, iMax
Dim Start, iNew, swap
iMax = UBound(a)
For i = 0 To iMax - 1
Start = a(i)
iNew = a(i)
swap = i
For j = i + 1 To iMax
If a(j) < iNew Then
swap = j
iNew = a(j)
End If
Next
If swap <> i Then
a(swap) = Start
a(i) = iNew
End If
Next
End Sub
%>
el xml de donde saca los datos es este
Código PHP:
<?xml version="1.0" encoding="ISO-8859-1" ?>
<?xml-stylesheet title="XSL_formatting" type="text/xsl" href="/shared/bsp/xsl/rss/nolsol.xsl"?>
<rss version="2.0"><channel>
<title>BBC News | World | UK Edition</title>
<link>http://news.bbc.co.uk/go/rss/-/1/hi/world/default.stm</link>
<description>Visit BBC News for up-to-the-minute news, breaking news, video, audio and feature stories. BBC News provides trusted World and UK news as well as local and regional perspectives. Also entertainment, business, science, technology and health news.</description>
<language>en-gb</language>
<lastBuildDate>Wed, 04 Oct 2006 23:09:19 GMT</lastBuildDate>
<copyright>Copyright: (C) British Broadcasting Corporation, see http://news.bbc.co.uk/1/hi/help/rss/4498287.stm for terms and conditions of reuse</copyright>
<docs>http://www.bbc.co.uk/syndication/</docs>
<ttl>15</ttl>
<image>
<title>BBC News</title>
<url>http://news.bbc.co.uk/nol/shared/img/bbc_news_120x60.gif</url>
<link>http://news.bbc.co.uk/go/rss/-/1/hi/world/default.stm</link>
</image>
<item>
<title>Rice pledges US support for Abbas</title>
<description>US Secretary of State Condoleezza Rice seeks to boost beleaguered Palestinian leader Mahmoud Abbas.</description>
<link>http://news.bbc.co.uk/go/rss/-/1/hi/world/middle_east/5404998.stm</link>
<guid isPermaLink="false">http://news.bbc.co.uk/1/hi/world/middle_east/5404998.stm</guid>
<pubDate>Wed, 04 Oct 2006 17:29:48 GMT</pubDate>
<category>Middle East</category>
</item>
<item>
<title>'Nine soldiers killed' in Nigeria</title>
<description>A Nigerian militant group says it has killed nine government soldiers in a gun battle in the Niger Delta.</description>
<link>http://news.bbc.co.uk/go/rss/-/1/hi/world/africa/5408118.stm</link>
<guid isPermaLink="false">http://news.bbc.co.uk/1/hi/world/africa/5408118.stm</guid>
<pubDate>Wed, 04 Oct 2006 20:35:16 GMT</pubDate>
<category>Africa</category>
</item>
</channel>
</rss> ahora investigare de como sacar los datos de una base de datos (si alguien sabe que postee gracias)
