recursivity on php

[khadija]

my script crawl a site web given as input and displays all external links
but it posts up this error
atchable fatal error: Argument 1 passed to MyCrawler::handleDocumentInfo() must be an instance of PHPCrawlerDocumentInfo, null given, called in C:\wamp\www\1\exter.php on line 49 and defined in C:\wamp\www\1\exter.php on line 14

and i don't know how i can resolve this problem :/ , please heelp !!
this is my code

  <?php 
   //affiche les liens externes en vert et les autres en  bleu/  
    // It may take a whils to spider a website ... 
    set_time_limit(10000);

    // Inculde the phpcrawl-mainclass 
    include_once('../PHPCrawl_083/PHPCrawl_083/libs/PHPCrawler.class.php'); 
    include ('2.php');  
  // Extend the class and override the handleDocumentInfo()-method

    class MyCrawler extends PHPCrawler

    {
     function handleDocumentInfo(PHPCrawlerDocumentInfo $DocInfo) {


    if (PHP_SAPI == "cli") $lb = "\n"; 
     else {
$lb = "<br />"; 
$home_url = parse_url($DocInfo->url ,PHP_URL_HOST ); 
$file = @file_get_contents($DocInfo->url);
preg_match_all('/<a.*?href\s*=\s*["\']([^"\']+)[^>]*>.*?   <\/a>/si', $file, $urls);
   # Affichage
   echo '<br/>';

 foreach($urls as $url){
 for($i=0;$i<sizeof($url);$i++){

 // }

$link_url = parse_url( $url[$i] );

  if (substr ($url[$i],0,7) == "http://" ) {


           echo '1'.$lb ; 
           echo " Page requested:  ".$DocInfo->url."     (".$DocInfo->http_status_code.")".$lb; 
         echo '<br/>';
          echo "<font color=green >".$url[$i].$lb."</font>";
           echo '<br/>';

           echo $lb;

          flush();

          }
         else {

         $this->handleDocumentInfo($url[$i] );
         }

        }

     }
    }
  }
}


   $crawler = new MyCrawler();

 // URL to crawl 
   $crawler->setURL("http://www.tunisie-web.org ");

  // Only receive content of files with content-type "text/html"


 // Ignore links to pictures, dont even request pictures 
  $crawler->addURLFilterRule("#\.(jpg|jpeg|gif|png)$# i");

 // Store and send cookie-data like a browser does 
     $crawler->enableCookieHandling(true);

  // Set the traffic-limit to 1 MB (in bytes, 
 // for testing we dont want to "suck" the whole site) 
  //$crawler->setMaxDepth(-1) ;

 // Thats enough, now here we go 
 $crawler->go();

//httpwww.annuaire-ag.com

?>

[Anonymous]

What happens if you print the array $url?
Looks like that one of the entries isn't correct.

[khadija]

the problem is : $url[$i] is an url .but the argument of function 'handleDocumentInfo' must be an instance of class 'PHPCrawlerDocumentInfo'
i dont't know how create an instance of PHPCrawlerDocumentInfo by providing her $url[$i]

[Uwe Hunfeld]

Hi khadija,

sorry for my late answer!

I just don't understand what you are trying to achive by calling the handleDocumentInfo-method again recursively.

Do you want the crawler to request that URL?

Or am i missing something here?