Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in D:\OpenServer\domains\test\1

<?
    function db_connect(){
    define('DB_HOST', 'localhost');
    define('DB_USER', 'root');
    define('DB_PSWD', '');
    define('DB_NAME', 'test');
 
     $connection = mysql_connect(DB_HOST, DB_USER, DB_PSWD);
     mysql_query("SET NAMES utf8");
     if(!$connection || !mysql_select_db(DB_NAME, $connection))
     {
         return false;
     }
     return $connection;
}
function db_result_to_array($result)
     {
         $res_array = array();
         $count = 0;
         while($row = mysql_fetch_array($result))
         {
             $res_array[$count] = $row;
             $count++;
         }
         return $res_array;
     }
 
    function sqllike(){
    db_connect();
    $query = mysql_query("SELECT * FROM tab LIKE 's%'");
    $result = mysql_query($query);
    $result = db_result_to_array($result);
    return $result;
    }
    $vyvod = sqllike();
    foreach ($vyvod as $value) {
        echo $vyvod['id'].$vyvod['name'].$vyvod['kod'];
    }
?>

$query = "SELECT * FROM tab LIKE 's%'";

$query = mysql_query("SELECT * FROM tab LIKE 's%'");
$query = "SELECT * FROM tab LIKE 's%'";

$query = "SELECT * FROM tab WHERE name LIKE 's%'";