Mysqli select and count by - php

Question

i have the following code. When i run into phpmyadmin the result returns correctly 9 rows of users and a column called |count(*) with the count next to each user. Whats wrong on my while and cant return me the count? It returns just the user when in php code
<?php
if ($result = $mysqli->query("SELECT n.user, count(*) AS count_user FROM metadata n group by n.user")) {
/* fetch associative array */
while ($row = mysqli_fetch_assoc($result)) {
printf ($row['user'], $row[count]);
}
}
/* free result set */
?>

Answer 1

hi if i understand correctly your Question try this :
<?php
$mysqli = new mysqli("localhost", "root", "root", "test");
if (mysqli_connect_errno()) {
printf("Échec de la connexion : %s\n", mysqli_connect_error());
exit();
}
if ($result = $mysqli->query("SELECT name FROM users ORDER BY name")) {
/* get num rows */
$row_cnt = $result->num_rows;
while($row = mysqli_fetch_assoc($result)) {
printf($row['name']);
}
printf('Nombre of line %s',$row_cnt);
$result->close();
}
$mysqli->close();

Answer 2

You have used wrong index. you gave alias count_user in your query so you must use it when you fetch.
Just change this
printf ($row['user'], $row[count]);
to
printf ($row['user'], $row['count_user']);