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php-windows | 2002061

RE: [PHP-WIN] Retrieving data from a URL in PHP From: Scott Hurring (scott <email protected>)
Date: 06/05/02

To illustrate what's wrong with the code from the book,
this code works:

$symbol="ibm";
echo "<h1>Stock Quote for $symbol</h1>\n";
$theurl="http://finance.yahoo.com/q?s={$symbol}&d=v1";
if (!($fp=fopen($theurl, "r")))
 {
  echo "Could not open the URL";
  exit;
 }
$contents= fread($fp, 1000000);
fclose($fp);

if (preg_match("/(<b>[0-9]+\.[0-9]+<\/b>)/",$contents, $quote))
 {
  echo "$symbol was sold at: ";
  echo $quote[1];
 }
else
 {
  echo "No quote available.";
 }

echo "<br>"."This information retrieved from<br>"."<a
href=\"$theurl\">$theurl</a><br>"."on ".(date("l jS F Y g:i a T")); 

---
Scott Hurring
Systems Programmer
EAC Corporation
ScottH <email protected>
Voice: 201-462-2149
Fax: 201-288-1515

> -----Original Message-----
> From: Anthony Ritter [mailto:tony <email protected>]
> Sent: Wednesday, June 05, 2002 4:53 PM
> To: php-windows <email protected>
> Subject: [PHP-WIN] Retrieving data from a URL in PHP
> 
> 
> The code that follows is from Welling and Thomson's book on 
> PHP and mysql
> (page 372)
> 
> I've tried it on Apache/ MS Windows 98 / PHP and I get the 
> following line:
> 
> "No quote available."
> 
> My questions...
> 
> 1. Why can't I retrieve the present stock quote?
> 
> and
> 
> 2. What does the variable
> 
> $quote
> 
> represent in the script?
> 
> I cannot find what the variable -or array - $quote has been 
> assigned to.
> Please see:
> 
> echo $quote[1];
> 
> below
> 
> Thanking all in advance.
> Tony Ritter
> ......................................................................
> 
> 
> <html>
> <head>
> <title>Stock Quote from NYSE</title>
> </head>
> <body>
> <?
> $symbol="IBM";
> echo "<h1>Stock Quote for $symbol</h1>";
> $theurl="http://finance.yahoo.com/q?s=ibm&d=v1";
> if (!($fp=fopen($theurl, "r")))
>  {
>   echo "Could not open the URL";
>   exit;
>  }
> $contents= fread($fp, 1000000);
> fclose($fp);
> $pattern="(\\\$[0-9]+\\.[0-9]+)";
> if (eregi($pattern,$contents,$quote))
>  {
>   echo "$symbol was sold at:  ";
>   echo $quote[1];
>  }
> else
>  {
>   echo "No quote available.";
>  }
> echo "<br>"."This information retrieved from<br>"."<a
> href=\"$theurl\">$theurl</a><br>"."on ".(date("l jS F Y g:i a T"));
> ?>
> </body>
> </html>
> 
> 
> 
> 
> 
> 
> 
> -- 
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