Online PHP editor | output for PTCUE

<?php $categories = array('Movie'); $reviews = array( array('category' => 'Movie'), array('category' => 'Movie'), array('category' => 'Movie'), array('category' => 'Movie'), array('category' => 'Game') ); print_r($reviews); // The issue WAS I'm not use ($categories) here... $filtered = array_filter($reviews, function($review) { return in_array($review['category'], $categories) === NULL }); print_r($filtered);