Curl post comments in blogs problem

<?

set_time_limit(0);

function postComment($url_main, $postfields, $agent) {

	$url = $url_main;
	$useragent = $agent;
	$referer = $url;

	$urlParse = parse_url($url);
	$urlComment = $urlParse['host'].'/wp-comments-post-php';
	
	$lines = array();
	
	$ch = curl_init($url);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
	$content = curl_exec($ch);
	curl_close($ch);

	$lines = explode("\n", $content);
	
	$idPost = 0;

	if(count($lines) > 0 && $lines != false){
		$matriz_fl = preg_grep("/shortlink/", $lines);
		if(is_array($matriz_fl) && count($matriz_fl) > 0){
			$first_key = key($matriz_fl);
			$idPost = preg_replace('/\D/', '', $lines[$first_key]);
		}
		$matriz_post = preg_grep("/wp-comments-post-php/", $lines);
		if(is_array($matriz_post) && count($matriz_post) > 0){
			$first_key = key($matriz_post);
			$idPostUrl = $lines[$first_key];
			$regexp = "<form\s[^>]*action=(\"??)([^\" >]*?)\\1[^>]*>";
			if(preg_match_all("/$regexp/siU", $idPostUrl, $matches)) {
				if(isset($matches[2]) && $matches[2] != "")
					$urlComment = $matches[2];
			}
		}
	}

	if($idPost != 0){

		$postfields["comment_post_ID"] = $idPost;

		$ch = curl_init($urlComment);
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, $postfields);
		curl_setopt($ch, CURLOPT_USERAGENT, '(Mozilla/5.0)');
		curl_setopt($ch, CURLOPT_AUTOREFERER, true);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
		$result = curl_exec($ch);
		curl_close($ch);
		
	}

	$lines = array();
	
	$ch = curl_init($url_main);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
	$content = curl_exec($ch);
	curl_close($ch);
	
	$lines = explode("\n", $content);
	
	if(count($lines) > 0 && $lines != false){
		$lastUrl = str_replace('h t t p : / / ','',$postfields["url"]);
		$lastUrl = str_replace('/','',$lastUrl);
		$matriz_co = preg_grep("/".$lastUrl."/", $lines);
		if(is_array($matriz_co) && count($matriz_co) > 0){
			$first_key = key($matriz_co);
			$url = $lines[$first_key];
			if($url != ""){
				$filename = 'txtfileworking';
				$fp = fopen($filename, "a+");
				$write = fputs($fp, $url_main."\n");
				fclose($fp);
			}
		} else {
				$filename = 'txtfilenotworking';
				$fp = fopen($filename, "a+");
				$write = fputs($fp, $url_main."\n");
				fclose($fp);
		}
		
	}

}

$agents = file('useragentstxt');
$backlinks = file('backlinkstxt');
$comments = file('commentstxt');

for($i=0;$i<count($comments);$i++){
	$string =  preg_split('/[\}{]/', $comments[$i]);
	$str = '';
	for($x=0;$x<count($string);$x++){
		$strSplitted[$x] = explode('|',$string[$x]);
		$str .= $strSplitted[$x][array_rand($strSplitted[$x])];
	}
	
	$comments[$i] = preg_replace('!\s+!', ' ', $str);
}

$commentsArr = array();

for($i=0;$i<count($comments);$i++){
	if($comments[$i] != ' ')
		$commentsArr[$i] = $comments[$i];
}

$postfields = array();
$postfields['action'] = 'submit';
$postfields['submit'] = 'Submit Comment';
$postfields['author'] = 'Author';
$postfields['url'] = 'mywebpageurl';
$postfields['comment_parent'] = 0;
$postfields['_wp_unfiltered_html_comment'] = '0d870b294b';
$postfields['subscribe_comments'] = 'suscribe';
$postfields['subscribe_blog'] = 'suscribe';

$names = array('michael','peter','scott','lincoln','joseph','phill','luke');
$servers = array('yahoocom','hotmailcom','gmailcom','aolcom');

for($i=1;$i<count($backlinks);$i++){
	
	$randName = $names[array_rand($names)];
	$randNumber = mt_rand(1,9999);
	$randServer = $servers[array_rand($servers)];
	
	$postfields['email'] = $randName.$randNumber.'aaaa'.$randServer;
	$postfields['comment'] = $commentsArr[array_rand($commentsArr)];

	postComment($backlinks[$i], $postfields, $agents[mt_rand(0,count($agents)-1)]);

	sleep(1);
	
}

?>