Screen Scraping

Sacky

I am using this as a guide to how screen scraping works:
http://www.techdose.com/tutorials/php/eBayParsing/
with the full source on this page for the tutorial script:
http://www.techdose.com/tutorials/php/eBayParsing/ebayParsing3.php

Now i tryed to replicate it for mininova but im stumped as to how the script actually gets the information in the different tables, heres my modded script

<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>alpha script</title>
</head>
<body>
<?
/*******************************************************************
 Filename: mininovaparser.php
 Description:
 This script is to demonstrate a technique to parse mininova auctions.

 Author: Wayne Eggert
 Last Updated: December 2004
*******************************************************************/

$URL = "http://www.mininova.org/search/?search=".linux."";
$file = fopen("$URL", "r");
$r = "";
do{
    $data = fread($file, 8192);
    $r .= $data;
}
while(strlen($data) != 0);

$mininovaTABLEArray = preg_split ("/<table.*?>/", $r);

// now try to find which <table> contains the search results are
for($x=0; $x<count($mininovaTABLEArray); $x++){
    if(strstr($mininovaTABLEArray[$x],"Leechers")){ // this is text
        $resultTable = $x+1;
    }
}

$mininovaTRArray = preg_split("/<tr.*?>/",$mininovaTABLEArray[$resultTable]);

echo "<BR><B>Mininova Results:</B><BR><BR>";
$start=2;
$end = $start + count($mininovaTRArray);

for($i=$start;$i<$end;$i++){
    $mininovaTDArray = preg_split ("/<td.*?>/",$mininovaTRArray[$i]);
    //print_r($mininovaTDArray);
    preg_match("/<a.*?<\/a>/",$mininovaTDArray[4],$match);
    $torrent = strip_tags($match[0],"<A></A>");

if($torrent!=""){
    $torrent_name = $torrent;
    $price = strip_tags($mininovaTDArray[6]);
    // see if there's a Buy-It-Now price
    $priceArray = explode("$",$price);
    $torrent_price = $priceArray[1];
    $torrent_bin = $priceArray[1];
    $torrent_bids = strip_tags($mininovaTDArray[7]);
    $torrent_timeleft = strip_tags($mininovaTDArray[8]);

    echo $torrent_name." ".$torrent_price." ".$torrent_bids." ".$torrent_timeleft."<BR>";
}
}
?> 

</body>
</html>

Its almost exactly the same as the tutorial, but i dont know how to make it distinguish between the tables, and the tutorial doesnt go into depth about that, so could anyone give me a nice in depth explaination to how it does it, and give me a bit of a hand with the script?

Sacky

Ok now i have what is hopefully a simple question
My script is fixed and it can list mininovas search results for linux
here is the code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/x* html1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">* 
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>alpha script</title>
</head>
<body>
<?
// Scrape URL
$URL = "http://www.mininova.org/search/?search=linux";

// Open and get contents
$file = fopen($URL, "r");
$r = "";
do{
    $data = fread($file, 8192);
    $r .= $data;
}
while(strlen($data) != 0);

// Find Tables
$mininovaTABLEArray = preg_split ("/<table.*?>/", $r);

// Find Correct Table with keyword in it (Leechers)
for($x=0; $x<count($mininovaTABLEArray); $x++){
    if(strstr($mininovaTABLEArray[$x],"Leechers")){
        $resultTable = $x;  // Record Index of correct table (This was x+1 which is incorrect)
    }
}

// Split up Rows from Table
$mininovaTRArray = preg_split("/<tr.*?>/",$mininovaTABLEArray[$resultTable]);

echo "<BR>Mininova Results:<BR><BR>";

for($i=0; $i<count($mininovaTRArray); $i++){
    $mininovaTDArray = preg_split ("/<td.*?>/",$mininovaTRArray[$i]);

// 0 = Blank
// 1 = Date
// 2 = Category
// 3 = Download Link, Name and Link to Details
// 4 = Size
// 5 = Seeders
// 6 = Leechers

$torrent_Name     = strip_tags($mininovaTDArray[3]);
$torrent_Size     = strip_tags($mininovaTDArray[4]);
$torrent_Seeds    = strip_tags($mininovaTDArray[5]);
$torrent_Leechers = strip_tags($mininovaTDArray[6]);
echo $torrent_Name." ".$torrent_Size." ".$torrent_Seeds." ".$torrent_Leechers."<BR>";
}
?> 
</body>
</html>

The results are here:
http://www.p2phub.jumbahost.com/script/script.php
Now how would i make it include the links to the torrents on mininova (ie the href tags)