index.php

<?php
    if(filter_var($_POST['uid'], FILTER_VALIDATE_INT)){//if integer
        if((trim($_POST['search']) != '') && ($_POST['uid'] != '') && ($_POST['ip'] != '') && ($_POST['crpyt'] != '') && ($_POST['uid'] != '')){//if they dont equal ''
            if(($_POST['crpyt'] == md5($_SERVER['REMOTE_ADDR'])) && ($_POST['ip'] == $_SERVER['REMOTE_ADDR'])){//if md5 hash on the users ip is ok still
                include_once($_SERVER['DOCUMENT_ROOT'].'projects/GamePriceComparison/includes/config.php');//include configuration
                include_once($root.'includes/preg.php');//includes function & data
                include_once($root.'includes/sort.php');//includes function sort2d
            	
                //trim & set to vars
                $search = trim($_POST['search']);//what the user typed in
                $uid    = trim($_POST['uid']);//users facebook id

                $amazon['scrape']    = "http://www.amazon.co.uk/s/ref=nb_ss?url=search-alias%3Dvideogames&field-keywords=";
                $amazon['title']    = "Amazon UK";
                $amazon['url']    = "http://amazon.co.uk";
                $amazon['preg']    = '<span class="srTitle">(.*?)<\/span>.*?<span class="priceType"><a href="(.*?)">.*?<\/a>:<\/span>.*?<\/span> <span class="saleprice">(.*?)<\/span>';
                      	
                //amazon search
                $scrape = scrape_standard($amazon['preg'], $amazon['scrape'].urlencode($search));//send preg & search url will return a array
                $search = trim(strip_tags($scrape[0][1]));//new search string query result from amazon
                $searchtitle = $search;//used to output it to the user

                //save results to variable
                $prices[0]['price'] = str_replace('£',"",htmlentities($scrape[0][3]));                      	
                $prices[0]['retailer'] = $amazon['title'];                      	
                $prices[0]['link'] = $scrape[0][2];
                unset($scrape);
            	
                //extract console name from amazon title
                $lowercase_search = strtolower($search);//title from the amazon result in lowercase.
                $target[1] = "xbox";
                $target[2] = "wii";
                $target[3] = "ps3";
                $target[4] = "pc";

                for($i=1;$i<=5;$i++){
                    if(stristr($lowercase_search, $target[$i]) === FALSE) {
                        $result = 0;
                    }else{
                        $result = $i;
                        break;
                    }
                }

                $string1 = $search;
                $needle = "(";
                //find length of the needle
                    $needle_len = strlen($needle);
                //find postion
                    $position_num = strpos($string1,$needle) + $needle_len -1;
                //cut the string
                    $result_string = substr("$string1",0,$position_num);	
                    $search = urlencode(trim($result_string));// the url friendly search used to search the other sites.
      	
                 //play searches
                $searches['play'][0] = NULL;//not used
                $searches['play'][1] = "http://www.play.com/Search.aspx?searchtype=X360&searchstring=";//xbox 360
                $searches['play'][2] = "http://www.play.com/Search.aspx?searchtype=WII&searchstring=";//wii
                $searches['play'][3] = "http://www.play.com/Search.aspx?searchtype=PS3&searchstring=";//ps3
                $searches['play'][4] = "http://www.play.com/Search.aspx?searchtype=PC&searchstring=";//pc
          	
                 //play scrape data
                $play['scrape']    = $searches['play'][$result].$search;
                $play['title']    = "Play.com";
                $play['url']     = "http://play.com";
                $play['preg']     = '<\/a><\/div><\/td><td class="wide"><div class="info"><h5>    <a href="(.*?)">(.*?)<\/a><span>.*?<\/strong><\/span><\/h5><h6>£(.*?) <span class="orange">';
           	
                   //scrape play
                $scrape = scrape_standard($play['preg'], $play['scrape']);
                $prices[1]['price'] = $scrape[0][3];                        	
                $prices[1]['retailer'] = $play['title'];            	
                $prices[1]['link'] = $play['url'].$scrape[0][1];
                unset($scrape);//clears variable

                //asda searches 	
                $searches['asda'][0] = "http://www.asda-entertainment.co.uk/elysium.search?search=";
                $searches['asda'][1] = "&searchFilters=WGJveCAzNjAjZGVwYXJ0bWVudDpnYW1lc1wvcGxhdGZvcm1zXC94Ym94XC0zNjAh";//xbox 360
                $searches['asda'][2] = "&searchFilters=TmludGVuZG8gV2lpI2RlcGFydG1lbnQ6Z2FtZXNcL3BsYXRmb3Jtc1wvbmludGVuZG9cLXdpaSE%3D";//wii
                $searches['asda'][3] = "&searchFilters=UFMzI2RlcGFydG1lbnQ6Z2FtZXNcL3BsYXRmb3Jtc1wvcHMzIQ%3D%3D";//ps3
                $searches['asda'][4] = "&searchFilters=UEMjZGVwYXJ0bWVudDpnYW1lc1wvcGxhdGZvcm1zXC9wYyE%3D";//pc

                //asda scrape data
                $asda['scrape']    = $searches['asda'][0].$search.$searches['asda'][$result];
                $asda['title']    = "Asda";
                $asda['url']     = "http://www.asda-entertainment.co.uk/";
                $asda['preg']     = '<p class="product-name">.*?<a href="(.*?)" title="(.*?)">.*?<\/a>.*?<\/p>.*?<p class="price">.*?<span class="format">.*?<\/span>.*?163;(.*?)<span>Free Delivery<\/span>.*?<\/p>';

                 //scrape asda
                $scrape = scrape_standard($asda['preg'], $asda['scrape']);
                $prices[2]['price'] = $scrape[0][3];                        	
                $prices[2]['retailer'] = $asda['title'];            	
                $prices[2]['link'] = $asda['url'].$scrape[0][1];
                unset($scrape);//clears variable

                //zavvi searches 	
                 $searches['zavvi'][1] = "http://www.zavvi.com/elysium.search?searchFilters=WGJveCAzNjAjZGVwYXJ0bWVudDpnYW1lc1wvcGxhdGZvcm1zXC94Ym94XC0zNjAh&search=";//xbox 360
                  $searches['zavvi'][2] = "http://www.zavvi.com/elysium.search?searchFilters=TmludGVuZG8gV2lpI2RlcGFydG1lbnQ6Z2FtZXNcL3BsYXRmb3Jtc1wvbmludGVuZG9cLXdpaSE%3D&search=";//wii
                  $searches['zavvi'][3] = "http://www.zavvi.com/elysium.search?searchFilters=UFMzI2RlcGFydG1lbnQ6Z2FtZXNcL3BsYXRmb3Jtc1wvcHMzIQ%3D%3D&search=";//ps3
                  $searches['zavvi'][4] = "http://www.zavvi.com/elysium.search?searchFilters=UEMjZGVwYXJ0bWVudDpnYW1lc1wvcGxhdGZvcm1zXC9wYyE%3D&search=";//pc

                //zavvi scrape data
                $zavvi['scrape']    = $searches['zavvi'][$result].$search;
                $zavvi['title']    = "Zavvi";
                $zavvi['url']     = "http://www.zavvi.com/";
                $zavvi['preg']     = '<p class="product-name">.*?<a href="(.*?)" title="(.*?)">.*?<\/a>.*?<\/p>.*?<p class="price">.*?<span class="format">.*?<\/span>.*?163;(.*?)<span>Free Delivery<\/span>.*?<\/p>';

                 //scrape zavvi
                $scrape = scrape_standard($zavvi['preg'], $zavvi['scrape']);
                $prices[3]['price'] = $scrape[0][3];                        	
                $prices[3]['retailer'] = $zavvi['title'];            	
                $prices[3]['link'] = $zavvi['url'].$scrape[0][1];
                unset($scrape);//clears variable
            	
                //tesco
                $searches['tesco'][0] = "http://www.tescoentertainment.com/store/Search.tla/Search?keyword=";
                $searches['tesco'][1] = "&navigationstate=%3A8126%3A||0";//xbox 360
                $searches['tesco'][2] = "&navigationstate=%3A8128%3A||0";//wii
                $searches['tesco'][3] = "&navigationstate=%3A8124%3A||0";//ps3
                $searches['tesco'][4] = "&navigationstate=%3A8130%3A||0";//pc

                //tesco scrape data
                $tesco['scrape']    = $searches['tesco'][0].$search.$searches['tesco'][$result];
                $tesco['title']    = "Tesco";
                $tesco['url']     = "http://www.tescoentertainment.com";
                $tesco['preg']     = '.*?<div class="bi-ct js-buycontainer">.*?<a href="(.*?)">.*?£<\/span>(.*?)<\/p>';

                 //scrape tesco
                $scrape = scrape_standard($tesco['preg'], $tesco['scrape']);
                $prices[4]['price'] = $scrape[0][2];                        	
                $prices[4]['retailer'] = $tesco['title'];            	
                $prices[4]['link'] = $tesco['url'].$scrape[0][1];
                unset($scrape);//clears variable
                //output some info to users screen
                echo '<h3>You searched for "'.$searchtitle.'", is this correct ? if not <a href="#" onclick="search_again();return false;">search again</a></h3>'."\n";   	

                //debug table
                echo '<table cellpadding="0" cellspacing="0" width="100%">'."\n";            	
                    echo '<tr class="title">'."\n";
                        echo '<td><b>User</b></td>'."\n";
                        echo '<td><b>Search</b></td>'."\n";
                        echo '<td><b>IP</b></td>'."\n";
                    echo '</tr>'."\n";   	

                    echo '<tr>'."\n";
                        echo '<td>'.$uid.'</td>'."\n";
                        echo '<td>'.$search.'</td>'."\n";
                        echo '<td>'.$ip.'</td>'."\n";
                    echo '</tr>'."\n";  
                echo '</table>'."\n";
                //end of debug table
            	
                //standard table
                echo '<table cellpadding="0" cellspacing="0" width="100%">'."\n";            	
                echo '<tr class="title">'."\n";
                    echo '<td><b>Site</b></td>'."\n";
                    echo '<td><b>Price</b></td>'."\n";
                    echo '<td><b>Url</b></td>'."\n";
                echo '</tr>'."\n";              	
                	
                foreach($prices as $price){
                    echo '<tr>'."\n";
                        echo '<td>'.$price['retailer'].'</td>'."\n";
                        echo '<td>'.$price['price'].'</td>'."\n";
                        echo '<td>'.$price['link'].'</td>'."\n";
                    echo '</tr>'."\n";
                }
            	
                echo '</table>'."\n";            	
                echo '<script type="text/javascript">$("#result").corner(\'8px\');</script>'."\n";      	
                echo '<script type="text/javascript">frames[\'wallpost\'].window.location="'.$url.'wallpost.php?price='.$prices[0]['price'].'&game="'.$searchtitle.'</script>'."\n";      	
            }else{
                die('Unknown Error 3');
            }        	
        }else{
            die('Unknown Error 2');
        }
    }else{
        die('Unknown Error 1');
    }
?>