Valaki megnézné nekem ezt a 2 sort?

2soron mulik egy keresőm

$query = mysqli_query($query);

$numrows = mysqli_num_rows($query);

Warning: mysqli_query() expects at least 2 parameters, 1 given in C:\xampp\htdocs\search\search.php on line 34

Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, null given in C:\xampp\htdocs\search\search.php on line 35