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The Web site advertising business became much more profitable to Web site owners, and more effective for advertisers, when Web advertising agencies invested in contextual advertising techniques, like those used by AdSense and IntelliTXT.
Instead of display almost randomly chosen ads, context advertising techniques show ads that are picked automatically by the ad servers to match the topics of the content displayed in each page.
This package implements a solution that can be used to display contextual advertising using PHP.
It can scan the text in the current page and submit it to the server via AJAX. In response to the AJAX request, contextual advertising may be displayed in a pop-up window.
Please see attached file above.
controller.php
| <?PHP
/*
* Thesaurus
*
* @package Thesaurus
* @author $Author: sheiko $
* @version $Id: controller.php, v 1.5 2007/01/2 15:58:15 sheiko Exp $
* @since v.1.5
* @copyright (c) Dmitry Sheiko http://www.cmsdevelopment.com
*/
/**
* Thesaurus Controller Class
* @package Thesaurus
* @author $Author: sheiko $
*/
class Thesaurus {
var $DataSourceFile;
var $Output;
var $BodyContent;
var $Term;
var $ErrorMsg;
var $Length;
var $Tags;
/**
* Class Constructor
* @return object
*/
function Thesaurus() {
$this->DataSourceFile = "sample.csv";
$this->BodyContent = false;
$this->ErrorMsg = false;
$this->Term = false;
$this->Length = 0;
$this->Output = '';
if(isset($_POST["body"])) $this->BodyContent = urldecode($_POST["body"]);
if(isset($_POST["term"])) $this->Term = strtolower($_POST["term"]);
if(!$this->Term AND !$this->BodyContent) $this->ErrorMsg = "Incorrect parameters";
return $this;
}
/**
* Get data and filter data
*
* @return boolean
*/
function getDataAndFitlering() {
$data = file($this->DataSourceFile);
$this->Length = count($data);
foreach ($data as $key => $line) {
$arr = split(";", $line);
if($arr[0]==$this->Term) $this->Output = $arr[1];
unset($data[$key]);
}
}
/**
* Strip tags
*
*/
function stripTags($Term) {
$mathes = array();
preg_match_all("/(<a[^>]*>)(".preg_quote($Term,"/").")([^>]*?)<\/a>/is", $this->BodyContent, $mathes);
$this->Tags = $mathes[0];
preg_match_all("/(<script[^>]*>)(".preg_quote($Term,"/").")([^>]*?)<\/script>/is", $this->BodyContent, $mathes);
$this->Tags = array_merge($this->Tags, $mathes[0]);
preg_match_all("/title=\"([^\"]*?)(".preg_quote($Term,"/").")([^>]*?)\"/is", $this->BodyContent, $mathes);
$this->Tags = array_merge($this->Tags, $mathes[0]);
preg_match_all("/alt=\"([^\"]*?)(".preg_quote($Term,"/").")([^>]*?)\"/is", $this->BodyContent, $mathes);
$this->Tags = array_merge($this->Tags, $mathes[0]);
if($this->Tags) {
foreach($this->Tags as $match) {
$this->BodyContent = preg_replace("/".preg_quote($match,"/")."/s", "{!".md5($match)."!}", $this->BodyContent);
}
}
}
/**
* Restore tags
*
*/
function retoreTags() {
if($this->Tags) {
foreach($this->Tags as $match) {
$this->BodyContent = preg_replace("/\{!".md5($match)."!\}/s", $match, $this->BodyContent);
}
}
}
/**
* Get data and parse body content
*
* @return boolean
*/
function getDataAndParsing() {
$tags = array();
$data = file($this->DataSourceFile);
$this->Length = count($data);
$this->BodyContent = preg_replace("/parseContent();/is", "", stripslashes($this->BodyContent));
foreach ($data as $key => $line) {
$arr = split(";", $line);
$this->stripTags($arr[0]);
// Replace all matches
if(preg_match("/\s/", $arr[0])) {
if( preg_match("/".preg_quote($arr[0])."/is", $this->BodyContent ) )
$this->BodyContent = preg_replace("/(".preg_quote($arr[0]).")/is", "<a class=\"thesaurus\" onmouseover=\"getDefinition('\\1', event);\" onmouseout=\"setTimer();\">\\1</a>", $this->BodyContent);
} elseif( preg_match("/[\s<>]".preg_quote($arr[0])."[\s<>]/is", $this->BodyContent ) ) {
$this->BodyContent = preg_replace("/([\s<>])(".preg_quote($arr[0]).")([\s<>])/is", "\\1<a class=\"thesaurus\" onmouseover=\"getDefinition('\\2', event);\" onmouseout=\"setTimer();\">\\2</a>\\3", $this->BodyContent);
}
$this->retoreTags();
unset($data[$key]);
}
$this->Output = preg_replace("/[\r\n]/", "", $this->BodyContent);
}
/**
* Respond with JSON generation
*
* @return boolean
*/
function execRespond() {
if($this->Term) $this->getDataAndFitlering();
if($this->BodyContent) $this->getDataAndParsing();
if($this->Length==0) return false;
header("Content-type: text/html; charset=UTF-8");
$out = '{
"thlength" : '.$this->Length.',
"errormsg" : "'.$this->ErrorMsg.'",
"content" : "'.addslashes($this->Output).'"
}';
print $out;
}
}
$th = new Thesaurus();
$th->execRespond();
?> | |
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