Redirect generator

<?php
$file = fopen("dicar.csv","r");

while (($data = fgetcsv($file)) !== FALSE) {
	//echo "<pre>";print_r($data);
	$split_old_url = explode("?", $data[0]);
	$querystring =  $split_old_url[1];

	$url = $split_old_url[0];
	$url = explode('/', $url);

	$final_url = "";
	$counter = 0;
	foreach($url as $url_part) {
		if($counter > 0) {
			$final_url .= $url_part . "/";
		}
		$counter++;
	}
	$final_url = substr($final_url, 0, -1);
	if(strpos($querystring, "ID") !== false || strpos($querystring, "act") !== false || strpos($querystring, "Category") !== false || strpos($querystring, "nav=prof") !== false) {
		echo "RewriteCond %{QUERY_STRING} " . $querystring . "<br>";
		echo "RewriteRule ^" . $final_url . "(.*)$ " . $data[1] . "? [R=301,L]<br>";
	} else {
		echo "RewriteRule ^" . $final_url . "(.*)$ " . $data[1] . "? [R=301,L]<br>";
	}
}

fclose($file);
?>