However, nothing I can do allow me to read wikipedia except the very front page of wikipedia.
So, file_get_contents('http://en.wikipedia.org/wiki/Andy_Williams') doesn't work, but file_get_contents('http://wikipedia.org') works just fine.
Your earlier message hinted at it:
Warning: file_get_contents(http://en.wikipedia.org/wiki/Andy_Williams) [function.file-get-contents]: failed to open stream: HTTP request failed! HTTP/1.0 403 Forbidden in /home/interne4/public_html/index.php on line 20
Take note of the HTTP/1.0, Wikipedia uses Squid proxies to load balance the site, and I have a feeling they cannot take HTTP/1.0 headers. I'm sure they have been configured to require HTTP/1.1
[root@linux cron.daily]# telnet en.wikipedia.org 80
Trying 66.230.200.100...
Connected to en.wikipedia.org (66.230.200.100).
Escape character is '^]'.
GET /wiki/Andy_Williams HTTP/1.0
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML><HEAD><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<TITLE>ERROR: The requested URL could not be retrieved</TITLE>
<STYLE type="text/css"><!--BODY{background-color:#ffffff;font-family:verdana,sans-serif}PRE{font-family:sans-serif}--></STYLE>
</HEAD><BODY>
<H1>ERROR</H1>
<H2>The requested URL could not be retrieved</H2>
<HR noshade size="1px">
<P>
While trying to process the request:
<PRE>
GET /wiki/Andy_Williams HTTP/1.0
</PRE>
<P>
The following error was encountered:
<UL>
<LI>
<STRONG>
Invalid Request
</STRONG>
</UL>
<P>
Some aspect of the HTTP Request is invalid. Possible problems:
<UL>
<LI>Missing or unknown request method
<LI>Missing URL
<LI>Missing HTTP Identifier (HTTP/1.0)
<LI>Request is too large
<LI>Content-Length missing for POST or PUT requests
<LI>Illegal character in hostname; underscores are not allowed
</UL>
<P>Your cache administrator is <A HREF="mailto:nobody">nobody</A>.
<BR clear="all">
<HR noshade size="1px">
<ADDRESS>
Generated Tue, 19 Dec 2006 21:49:24 GMT by sq16.wikimedia.org (squid/2.6.STABLE5)
</ADDRESS>
</BODY></HTML>
Connection closed by foreign host.
And with HTTP/1.1 and Host tag:
[root@linux cron.daily]# telnet en.wikipedia.org 80
Trying 66.230.200.100...
Connected to en.wikipedia.org (66.230.200.100).
Escape character is '^]'.
GET /wiki/Andy_Williams HTTP/1.1
Host: en.wikipedia.org
HTTP/1.0 200 OK
Date: Sun, 17 Dec 2006 06:08:31 GMT
Server: Apache
X-Powered-By: PHP/5.1.2
Content-Language: en
Vary: Accept-Encoding,Cookie
Cache-Control: private, s-maxage=0, max-age=0, must-revalidate
Last-Modified: Sun, 03 Dec 2006 14:53:02 GMT
Content-Type: text/html; charset=utf-8
Age: 103615
X-Cache: HIT from sq29.wikimedia.org
X-Cache-Lookup: HIT from sq29.wikimedia.org:80
Via: 1.0 sq29.wikimedia.org:80 (squid/2.6.STABLE5)
Connection: close
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" dir="ltr">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="keywords" content="Andy Williams,1927,1930s,1944,1947,1951,1952,1955,1956,1960,1960s" />
<link rel="shortcut icon" href="/favicon.ico" />
<link rel="search" type="application/opensearchdescription+xml" href="/w/opensearch_desc.php" title="Wikipedia (English)" />
<link rel="copyright" href="http://www.gnu.org/copyleft/fdl.html" />
<title>Andy Williams - Wikipedia, the free encyclopedia</title>
<style type="text/css" media="screen,projection">/*<![CDATA[*/ @import "/skins-1.5/monobook/main.css?32"; /*]]>*/</style>
<link rel="stylesheet" type="text/css" media="print" href="/skins-1.5/common/commonPrint.css?32" />
<!--[if lt IE 5.5000]><style type="text/css">@import "/skins-1.5/monobook/IE50Fixes.css?32";</style><![endif]-->
<!--[if IE 5.5000]><style type="text/css">@import "/skins-1.5/monobook/IE55Fixes.css?32";</style><![endif]-->
<!--[if IE 6]><style type="text/css">@import "/skins-1.5/monobook/IE60Fixes.css?32";</style><![endif]-->
<!--[if IE 7]><style type="text/css">@import "/skins-1.5/monobook/IE70Fixes.css?32";</style><![endif]-->
<!--[if lt IE 7]><script type="text/javascript" src="/skins-1.5/common/IEFixes.js?32"></script>
<meta http-equiv="imagetoolbar" content="no" /><![endif]-->
<script type= "text/javascript"><!--
var skin = "monobook";
var stylepath = "/skins-1.5";
var wgArticlePath = "/wiki/$1";
var wgScriptPath = "/w";
var wgServer = "http://en.wikipedia.org";
var wgCanonicalNamespace = "";
var wgNamespaceNumber = 0;
var wgPageName = "Andy_Williams";
var wgTitle = "Andy Williams";
var wgArticleId = "527989";
var wgIsArticle = true;
var wgUserName = null;
var wgUserLanguage = "en";
var wgContentLanguage = "en";
var wgBreakFrames = false;
var wgBreakFramesExceptions = ["babelfish.altavista.com", "translate.google.com"];
var wgCurRevisionId = "91791711";
--></script>
[snip]
<!-- Served by srv89 in 0.099 secs. --></body></html>
Connection closed by foreign host.
[root@linux cron.daily]#
