Multiple Database values in an php array

Question

Suppose you have this:

while ($record = mysql_fetch_assoc($dbquery)) {
    $arr[] = $record['$columnvalue1'];
}
$arraycount = count($arr);

and you want multiple columns in the array how is this done?

while ($record = mysql_fetch_assoc($dbquery)) {
    $arr[] = array($record['$columnvalue1'],$record['$columnvalue2']);
}
$arraycount = count($arr);

the above code errors:

Warning: array_count_values(): Can only count STRING and INTEGER values! 

Answer 1

To add multiple column values in to an array

$arr = array();
while ($record = mysql_fetch_array($dbquery)) {
    array_push($arr,$record['$columnvalue1'],$record['$columnvalue2']);
}

To find the sum of the array

$arraycount = array_sum($arr); //to find the sum of the array
$num = sizeof($arr); //to find the size of the array