check if the query results empty row mysqli

Question

I am using this code, but I don\'t understand how to check if the query returns zero rows. How can I check that?

$results = $mysqli->query(\"SELECT ANNOUN         


        

Answer 1

if array is look like this [null] or [null, null] or [null, null, null, ...]

you can use implode:

implode is use for convert array to string.

$con = mysqli_connect("localhost","my_user","my_password","my_db");
$result = mysqli_query($con,'Select * From table1');
$row = mysqli_fetch_row($result);
if(implode(null,$row) == null){
     //$row is empty
}else{
     //$row has some value rather than null
}