Hi there,
Let say that we have the following query:
SELECT DISTINCT COUNT(`users_id`) FROM `users_table`;
this query will return the number of the users from a table. I need to pass this value to a PHP variable. I'm using this:
$sql_result = mysql_query($the_query_from_above) or die(mysql_error());
if($sql_result)
{
$nr_of_users = mysql_fetch_array($sql_result);
}
else
{
$nr_of_users = 0;
}
please correct my code where you think is necessary.
Which is the best approach. How do you recommend to do this ?
From stackoverflow
-
Like this:
// Changed the query - there's no need for DISTINCT // and aliased the count as "num" $data = mysql_query('SELECT COUNT(`users_id`) AS num FROM `users_table`') or die(mysql_error()); // A COUNT query will always return 1 row // (unless it fails, in which case we die above) // Use fetch_assoc for a nice associative array - much easier to use $row = mysql_fetch_assoc($data); // Get the number of uses from the array // 'num' is what we aliased the column as above $numUsers = $row['num'];
-
Also, an alternative using mysqli, which you should be using anyway for parameter interpolation:
$stamement = $connection->prepare($the_query_from_above); $statement->execute(); $statement->bind_result($nr_of_users); $statement->fetch();
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