Decaptcher PHP API

countzero — Tue, 25 Aug 2009 10:54:18 +0000

I rewrote Decaptcher’s PHP monstrosity yesterday. My version is a single class and doesn’t use three dozen constants. You can find the source below:

http://svn.blackhat-seo.com/stuff/php/Decaptcher/

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Deferred chain

countzero — Tue, 21 Jul 2009 16:33:49 +0000

A few months ago, I wrote a small PHP class to help me create chainable interfaces (PHP people like to call these “fluent interfaces”) without having to retrofit old code. I call this DeferredChain.

Here is the source for DeferredChain.

The idea is that you extend DeferredChain and write a bunch of methods prefixed with ‘_’. These don’t have to return $this to enable you to chain them.

class MyChain extends DeferredChain {


  protected function _doSomething() {

    $f = file_get_contents('something.txt');

    return $f;

  }
  // you can have method arguments of course

  protected function _doSomethingElse($x) {

    return $x*2;

  }

}
$m = new MyChain;

$m->doSomething()->doSomethingElse(42);
//do whatever
// execute your chain step by step

while($res = $m->doNext()) {

  $results[] = $res ;

  echo $res;

}

// or all steps at once $results = $m->doAll();

If you are still reading this post, here is a more interesting example.

$d = new DiggChain($user,$pass);


$d->login()->profile()

->index()->diggStories(4)->index()

->category()->buryStories(2)

->category('general')->diggMine($story_id)

->index();
$c = new CurlBase;

while(($requests = $d->doNext())) { $c->addArr($requests); $c->perform(); }

Here is the incomplete DiggChain.

This is how I like to write glue for loosely coupled cURL requests. For example, I wouldn’t use chains for just a series of HTTP requests that login at a website. I have been using the Curl Objects library, which provides a specialized class for tightly coupled HTTP requests. You should probably check that out if you use php-cURL.

Well that’s it for today. Stay tuned for more coding related posts.

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Decaptcher PHP API

Deferred chain