Почему xml не добавляется в phpmyadmin?

Вроде всё без ошибок, браузер не выдаёт во всяком случае, а данные в базу не добавляются.

<?php 

	function insert($name, $desc, $year, $rating, $poster, $category_id) {
		$mysqli = new mysqli('localhost', 'root', '', 'kinomonster');
		
		if(mysqli_connect_errno()) {
			print_f('Соединение не установлено');
			exit();
		}
		
		$mysqli->set_charset('utf8');
	
		$query = "INSERT INTO movie VALUES(null, $name, $desc, $year, $rating, $poster, Now(),$category_id)";
		
		$result = false;
		if($mysqli->query($query)) {
			$result = true;
		}
		
		return $result;
	}
	
	$xml = simplexml_load_file("xml/movies.xml") or die("Error: Cannot create object");
	
	//echo count($xml);
	
	$title = null;
	$title_orign = null;
	$post = null;
	$rating = null;
	$year = null;
	
	foreach ($xml as $movie_key => $movie) {
		$title = $movie->title_russian;
		$title_orign = $movie->title_original;
		$year = $movie->year;
		
		foreach ($movie->poster->big->attributes() as $poster_key => $poster) {
			$post = $poster;
		}
		
		if($movie->imdb) {
			$rating = $movie->imdb->attributes()['rating'];
		} else {
				$rating = null;
		}
		
		insert($title, $title_orign, $year, $rating, $post, 1);
		
	}
	
	echo "<pre>";
	print_r($xml);
	echo "</pre>";

?>