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Search Engine Referrer & Keyword PHP Script Problem

I have a slight problem with a php class that is intended to determine the visiting search engine and keywords used then display them on the page. I get the script to properly report the referrer but not the keyword.

Code below and attached.

The Php Class;

<?php
class search_keywords{
 var $referer;
 var $search_engine;
 var $keys;
 var $sep;
 function search_keywords(){
 $this->referer = '';
 $this->sep = '';
 if ($_SERVER['HTTP_REFERER'] OR $_ENV['HTTP_REFERER']){
 $this->referer = urldecode(($_SERVER['HTTP_REFERER'] ? $_SERVER['HTTP_REFERER'] : $_ENV['HTTP_REFERER']));
 $this->sep = (eregi('(\?q=|\?qt=|\?p=)', $this->referer)) ? '\?' : '\&';
 }
 }
 function get_keys(){
 if (!empty($this->referer)){
 if (eregi('www\.google', $this->referer)){
 // Google
 preg_match('#{$this->sep}q=(.*?)\&#si', $this->referer, $this->keys);
 $this->search_engine = 'Google';
 }else if (eregi('(yahoo\.com|search\.yahoo)', $this->referer)){
 // Yahoo
 preg_match('#{$this->sep}p=(.*?)\&#si', $this->referer, $this->keys);
 $this->search_engine = 'Yahoo';
 }else if (eregi('search\.msn', $this->referer)){
 // MSN
 preg_match('#{$this->sep}q=(.*?)\&#si', $this->referer, $this->keys);
 $this->search_engine = 'MSN';
 }else if (eregi('www\.bing', $this->referer)){
 // Bing
 preg_match('#{$this->sep}q=(.*?)\&#si', $this->referer, $this->keys);
 $this->search_engine = 'Bing';
 }else if (eregi('search\.aol', $this->referer)){
 // AOL
 preg_match('#{$this->sep}q=(.*?)\&#si', $this->referer, $this->keys);
 $this->search_engine = 'AOL';
 }else if (eregi('www\.alltheweb', $this->referer)){
 // AllTheWeb
 preg_match('#{$this->sep}q=(.*?)\&#si', $this->referer, $this->keys);
 $this->search_engine = 'AllTheWeb';
 }else if (eregi('(looksmart\.com|search\.looksmart)', $this->referer)){
 // Looksmart
 preg_match('#{$this->sep}qt=(.*?)\&#si', $this->referer, $this->keys);
 $this->search_engine = 'Looksmart';
 }else if (eregi('(askjeeves\.com|ask\.com)', $this->referer)){
 // AskJeeves
 preg_match('#{$this->sep}q=(.*?)\&#si', $this->referer, $this->keys);
 $this->search_engine = 'AskJeeves';
 }else{
 $this->keys = 'Not available';
 $this->search_engine = 'Unknown';
 }
 return array($this->referer,(!is_array($this->keys) ? $this->keys : $this->keys[1]),$this->search_engine);
 }
 return array();
 }
} ?>

My code on the page to report the information;

<?php
require_once('lib/class/searchkeys.class.php');
$keys =& new search_keywords();
$keys = $keys->get_keys();
if (count($keys)){
 print 'Directed to this page from '.$keys[2].' search engine, within Keywords '.$keys[1].'';
}else{
 print 'nope';
}
?>

jb1dev

Instead of
return array();
Shouldn't you
return this-keys;

jb1dev

Err sorry, misread that. You are returning an array, first element is the referrer, second is the keys map.

So the keys are:

$ret = $keys->get_keys();
$map = $ret[1];
if (count($keys)){
      print '<p align="center">Directed to this page from <strong>'.$ret[0].'</strong> search engine, within Keywords <strong>'.$map.'</strong></p>';

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igotdreams

ASKER

This did not work, I got this;

Directed to this page from http://www.google.com/search?sourceid=navclient&ie=UTF-8&rlz=1T4GGLL_enUS300US300&q=website design search engine, within Keywords

'.$map.' did not return anything. Same problem as before.

jb1dev

Are you sure your regexes are right?

Try this example:

<?php
class search_keywords{
      var $referer;
      var $search_engine;
      var $keys;
      var $sep;
      function search_keywords(){
            $this->referer = '';
            $this->sep = '';
            if ($_SERVER['HTTP_REFERER'] OR $_ENV['HTTP_REFERER']){
                  $this->referer = urldecode(($_SERVER['HTTP_REFERER'] ? $_SERVER['HTTP_REFERER'] : $_ENV['HTTP_REFERER']));
                  $this->sep = (eregi('(\?q=|\?qt=|\?p=)', $this->referer)) ? '\?' : '\&';
            }
      }
      function get_keys(){
            $this->referer = "http://www.google.com/#hl=en&source=hp&q=find+text+to+search&aq=f&aqi=g10&oq=&fp=76098cdeeeb6268e"; 
            if (!empty($this->referer)){
                  if (eregi('www\.google', $this->referer)){
                        // Google
                        // preg_match('#{$this->sep}q=(.*?)\&#si', $this->referer, $this->keys);
                        preg_match('/q=([^\&]*)/', $this->referer, $this->keys);
                        $this->search_engine = 'Google';
                        // echo "Keywords: ".$this->keys."<br />\n";
                        echo "Keywords: ".$this->keys[1]."<br />\n";
                  }else if (eregi('(yahoo\.com|search\.yahoo)', $this->referer)){
                        // Yahoo
                        preg_match('#{$this->sep}p=(.*?)\&#si', $this->referer, $this->keys);
                        $this->search_engine = 'Yahoo';
                  }else if (eregi('search\.msn', $this->referer)){
                        // MSN
                        preg_match('#{$this->sep}q=(.*?)\&#si', $this->referer, $this->keys);
                        $this->search_engine = 'MSN';
                  }else if (eregi('www\.bing', $this->referer)){
                        // Bing
                        preg_match('#{$this->sep}q=(.*?)\&#si', $this->referer, $this->keys);
                        $this->search_engine = 'Bing';
                  }else if (eregi('search\.aol', $this->referer)){
                        // AOL
                        preg_match('#{$this->sep}q=(.*?)\&#si', $this->referer, $this->keys);
                        $this->search_engine = 'AOL';
                  }else if (eregi('www\.alltheweb', $this->referer)){
                        // AllTheWeb
                        preg_match('#{$this->sep}q=(.*?)\&#si', $this->referer, $this->keys);
                        $this->search_engine = 'AllTheWeb';
                  }else if (eregi('(looksmart\.com|search\.looksmart)', $this->referer)){
                        // Looksmart
                        preg_match('#{$this->sep}qt=(.*?)\&#si', $this->referer, $this->keys);
                        $this->search_engine = 'Looksmart';
                  }else if (eregi('(askjeeves\.com|ask\.com)', $this->referer)){
                        // AskJeeves
                        preg_match('#{$this->sep}q=(.*?)\&#si', $this->referer, $this->keys);
                        $this->search_engine = 'AskJeeves';
                  }else{
                        $this->keys = 'Not available';
                        $this->search_engine = 'Unknown';
                  }
                  echo "is array ".is_array($this->keys)."<br />\n";
                  return array( $this->referer,
                                (!is_array($this->keys) ? $this->keys : 
                                                            $this->keys[1]),
                                $this->search_engine);
            }
            echo "Returning empty array<br />\n";
            return array();
      }
} ?>

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igotdreams

ASKER

I guess that is the problem, but I do not know how to fix it. This is not my code.

jb1dev

So you want a space separated list of all keywords from the search engine referrer?
Can you provide examples of each referrer URL?

I used a hard coded example from google above.

jb1dev

These regexes work for a more of them.
I haven't tested them all.

<?php
class search_keywords{
      var $referer;
      var $search_engine;
      var $keys;
      var $sep;
      function search_keywords(){
            $this->referer = '';
            $this->sep = '';
            if ($_SERVER['HTTP_REFERER'] OR $_ENV['HTTP_REFERER']){
                  $this->referer = urldecode(($_SERVER['HTTP_REFERER'] ? $_SERVER['HTTP_REFERER'] : $_ENV['HTTP_REFERER']));
                  $this->sep = (eregi('(\?q=|\?qt=|\?p=)', $this->referer)) ? '\?' : '\&';
            }
      }
      function get_keys(){ 
            // examples...
            // $this->referer = "http://www.google.com/#hl=en&source=hp&q=find+text+to+search&aq=f&aqi=g10&oq=&fp=76098cdeeeb6268e"; 
            // $this->referer = "http://search.yahoo.com/search?p=text+to+search&toggle=1&cop=mss&ei=UTF-8&fr=yfp-t-701"; 
            if (!empty($this->referer)){
                  if (eregi('www\.google', $this->referer)){
                        // Google 
                        preg_match('/q=([^\&]*)/', $this->referer, $this->keys);
                        $this->search_engine = 'Google'; 
                  }else if (eregi('(yahoo\.com|search\.yahoo)', $this->referer)){
                        // Yahoo
                        preg_match('/p=(.*?)\&/', $this->referer, $this->keys);
                        $this->search_engine = 'Yahoo'; 
                  }else if (eregi('search\.msn', $this->referer)){
                        // MSN
                        preg_match('/q=(.*?)\&/', $this->referer, $this->keys);
                        $this->search_engine = 'MSN';
                  }else if (eregi('www\.bing', $this->referer)){
                        // Bing
                        preg_match('/q=(.*?)\&/', $this->referer, $this->keys);
                        $this->search_engine = 'Bing'; 
                  }else if (eregi('search\.aol', $this->referer)){ 
                        // AOL
                        preg_match('/q=(.*?)\&/', $this->referer, $this->keys);
                        $this->search_engine = 'AOL'; 
                  }else if (eregi('www\.alltheweb', $this->referer)){
                        // AllTheWeb
                        preg_match('/q=(.*?)\&/', $this->referer, $this->keys);
                        $this->search_engine = 'AllTheWeb';
                  }else if (eregi('(looksmart\.com|search\.looksmart)', $this->referer)){
                        // Looksmart
                        preg_match('/qt=(.*?)\&/', $this->referer, $this->keys);
                        $this->search_engine = 'Looksmart';
                  }else if (eregi('(askjeeves\.com|ask\.com)', $this->referer)){
                        // AskJeeves
                        preg_match('/q=(.*?)\&/', $this->referer, $this->keys);
                        $this->search_engine = 'AskJeeves';
                  }else{
                        $this->keys = 'Not available';
                        $this->search_engine = 'Unknown';
                  }
                  echo "is array ".is_array($this->keys)."<br />\n";
                  return array( $this->referer,
                                (!is_array($this->keys) ? $this->keys : 
                                                            $this->keys[1]),
                                $this->search_engine);
            }
            echo "Returning empty array<br />\n";
            return array();
      }
} ?>

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ASKER CERTIFIED SOLUTION

jb1dev

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igotdreams

ASKER

thanks

Search Engine Referrer &amp; Keyword PHP Script Problem

Search Engine Referrer & Keyword PHP Script Problem