Sweet Captcha Breaker

sweet-captcha.php

<?php
	set_time_limit(0);
	$answer_not_found = TRUE;
	$counter = 1;
	echo("breaking sweet captcha in progress.");
	while($answer_not_found)
	{
		$source = file_get_contents('http://sweetcaptcha.com');
		preg_match('/question_[0-9]{1,}\\.png/', $source, $matches_question);
		$question_number = explode('_',$matches_question[0]);
		$question_number = explode('.',$question_number[1]);
		$question_number = $question_number[0];

		preg_match('/<li( )style="display:( )inline;"( )rel="[0-9a-zA-Z]*"><img( )alt="captcha"( )src="http:\\/\\/www.sweetcaptcha.com\\/upload\\/answer_'.$question_number.'\\.png"\\/>/', $source, $matches_answers);

		if($matches_answers[0] != "")
		{
			echo("\ncaptcha broken after ".$counter." requests!");
			$matches_answers2 = explode('rel="',$matches_answers[0]);
			$matches_answers3 = explode('"><img',$matches_answers2[1]);
			$scvalue = $matches_answers3[0];
			echo("\nscvalue = ".$scvalue);
			echo("\n");
			$answer_not_found = FALSE;
		}

		if(!$answer_not_found)
		{
			preg_match('/name="sckey"( )value="[0-9a-zA-Z]*"/', $source, $matches_sckey);
			$sckey = explode('value="',$matches_sckey[0]);
			$sckey = substr($sckey[1],0,-1);
			echo("sckey = ".$sckey);
			echo("\n");
		}
		else
		{
			$counter++;
			echo('.');
			sleep(1);
		}
	}
?>