Echo error when using max () in mysql query

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i have to find max value from database. for this purpose i have used max() with where clause but when i echo the result then i get this error.

Catchable fatal error: Object of class mysqli_result could not be converted to string in

i have searched alot and tried this,, this and this and some of others but found nothing helpfull...

my code is :

include('connection.php');

$qry = "SELECT MAX(week)  FROM reservation WHERE status= 1" ;

$result = mysqli_query($connection,$qry2);

echo $result ;

on the same page other query is working fine but this one is not..

what i want :

basically i want to get the maximum week number where status is = 1


Hope this helps you

$result = mysqli_query("SELECT MAX(week) AS max_week reservation WHERE status= 1");
$row = mysqli_fetch_array($result);
echo $row["max_week"];