Реализация поиска: Fatal error: Call to a member function fetch_assoc() on a non-object in

<?php
    function search($words){
    $words = htmlspecialchars($words);
    if ($words === "") return false;
    $query_search = "";
 
    $arraywords = explode (" ", $words);
    foreach($arraywords as $key => $value){
        if(isset($arraywords[$key - 1]))
            $query_search .= ' OR ';
        $query_search .= '`meta_d` LIKE"%'.$value.'%" OR `text` LIKE"%'.value.'%"';
        }
        $query = "SELECT * FROM color-ico WHERE $query_search";
        echo $query;
        $mysqli = new mysqli("localhost","user","1qaz2wsx","inetmagazin");
        $result_set = $mysqli->query($query);
        $mysqli->close();
        
        $i = 0;
        while($row = $result_set->fetch_assoc()){
            $result[$i] = $row;
            $i++;
        }
        return $results;
    }
    if(isset($_POST['bsearch'])){
        $words = $_POST['words'];
        $results = search($words);
        print_r($results);
    }
 
?>

$query = "SELECT * FROM color-ico WHERE $query_search";

$query = "SELECT * FROM `color-ico` WHERE $query_search";