(PHP ActiveX) Avoiding Outbound Links Matching Patterns

The spider accumulates outbound links when crawling. Your program may specify any number of "avoid patterns" to prevent any link matching at least one of the wildcarded patterns from being added.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Spider')
$spider = new COM("Chilkat.Spider");

// --------------------------------------------------------------------
// Note: The URLs in this example are no longer valid.
// You should replace the URLs with URLs from a site of your
// own choosing -- preferably your own site if testing.
// (Google's Directory no longer exists.)
// --------------------------------------------------------------------

// First, we'll get the outbound links for a page in the
// Google directory.  Then we'll add some avoid patterns
// and then re-fetch, to see it work...

$spider->Initialize('directory.google.com');
$spider->AddUnspidered('http://directory.google.com/Top/Recreation/Food/Cheese/');

$success = $spider->CrawlNext();

// Display the outbound links

for ($i = 0; $i <= $spider->NumOutboundLinks - 1; $i++) {
    print $spider->getOutboundLink($i) . "\n";
}

// The output:
// http://www.cheese.com/
// http://www.cheesediaries.com/
// http://www.WisDairy.com/
// http://www.newenglandcheese.com
// http://www.ilovecheese.com
// http://www.cheesefromspain.com
// http://www.realcaliforniacheese.com/
// http://www.frencheese.co.uk/
// http://www.cheesesociety.org/
// http://www.specialcheese.com/queso.htm
// http://www.franceway.com/cheese/intro.htm
// http://www.foodsubs.com/Chesfirm.html
// http://www.cheeseboard.co.uk/
// http://www.thecheeseweb.com/
// http://www.vtcheese.com/
// http://www.coldbacon.com/cheese.html
// http://www.norwegiancheeses.co.uk/
// http://www.reluctantgourmet.com/cheese.htm
// http://www.lancewood.co.za/
// http://www.switzerlandcheese.ca
// http://www.frenchcheese.dk/
// http://www.dolcevita.com/cuisine/cheese/cheese.htm
// http://cheeseisland.net/
// http://www.cheestrings.ca/
// http://www.dreamcheese.co.uk
// http://hgic.clemson.edu/factsheets/HGIC3506.htm
// http://www.epicurious.com/cooking/how_to/food_dictionary/entry?id=1815
// http://www.mousetrapcheese.co.uk
// http://taquitos.net/yum/gc.shtml
// http://www.greek-recipe.com/static/greek-cheese
// http://www.park.org/Netherlands/pavilions/food_and_markets/cheese/introduction.html
// http://www.dairyfarmers.org/engl/recipes/4_1.asp
// http://www.prairieridgecheese.com/wischeesguid.html
// http://dmoz.org/cgi-bin/add.cgi?where=Recreation/Food/Cheese
// http://dmoz.org/about.html
// http://dmoz.org/cgi-bin/apply.cgi?where=Recreation/Food/Cheese

// Do it again, but this time with avoid patterns.
$spider->Initialize('directory.google.com');
$spider->AddUnspidered('http://directory.google.com/Top/Recreation/Food/Cheese/');

// Add some avoid patterns:
$spider->AddAvoidOutboundLinkPattern('*dmoz.org*');
$spider->AddAvoidOutboundLinkPattern('*?id=*');
$spider->AddAvoidOutboundLinkPattern('*.co.uk*');
$success = $spider->CrawlNext();

print '-----------------------' . "\n";

// Display the outbound links
for ($i = 0; $i <= $spider->NumOutboundLinks - 1; $i++) {
    print $spider->getOutboundLink($i) . "\n";
}

// Output:
// http://www.cheese.com/
// http://www.cheesediaries.com/
// http://www.WisDairy.com/
// http://www.newenglandcheese.com
// http://www.ilovecheese.com
// http://www.cheesefromspain.com
// http://www.realcaliforniacheese.com/
// http://www.cheesesociety.org/
// http://www.specialcheese.com/queso.htm
// http://www.franceway.com/cheese/intro.htm
// http://www.foodsubs.com/Chesfirm.html
// http://www.thecheeseweb.com/
// http://www.vtcheese.com/
// http://www.coldbacon.com/cheese.html
// http://www.reluctantgourmet.com/cheese.htm
// http://www.lancewood.co.za/
// http://www.switzerlandcheese.ca
// http://www.frenchcheese.dk/
// http://www.dolcevita.com/cuisine/cheese/cheese.htm
// http://cheeseisland.net/
// http://www.cheestrings.ca/
// http://hgic.clemson.edu/factsheets/HGIC3506.htm
// http://taquitos.net/yum/gc.shtml
// http://www.greek-recipe.com/static/greek-cheese
// http://www.park.org/Netherlands/pavilions/food_and_markets/cheese/introduction.html
// http://www.dairyfarmers.org/engl/recipes/4_1.asp
// http://www.prairieridgecheese.com/wischeesguid.htm

?>