Getting sum in PHP MySQL - mysqli

Question

I want to get sum of integers that are selected from mysql
Here is my code
<?php
Include 'init.php';
$page = '2459';
$ttl = array();
$search = $db->link->query("SELECT id,packid,rating FROM pakrate WHERE packid LIKE '%$q%'");
if($search->num_rows>0){
while($result=$search->fetch_assoc()){
$ttl[] = $row['rating'];
echo $ttl;
echo $result[SUM('rating')];
}
}
else {
echo "no such query";
}
So what I am doing wrong here, any other suggestions?

Answer 1

Just run the sum in your query
<?php
Include 'init.php';
$page = '2459';
$ttl = array();
// Not sure why you're doing this but there should only be one leading connection ($conn->query) unless you're doing some object item elsewhere in init.
// I would also use prepared statements since they're more secure:
$q = "%$q%"; // create your like variable, wherever $q is coming from??
$query = "SELECT sum(rating) from pakrate WHERE packid LIKE ?);
$stmt = $db->prepare($query); // assuming $db is your connection variable
if($stmt){
$stmt->bind_param("s",$q); // Bind the variable in
$stmt->execute(); // Execute
$stmt->bind_result($rating); // Bind the result variable
$stmt->store_result(); // Store it so you can get num_rows
$rows = $stmt->num_rows; // assign rows found
if($rows > 0){
while($stmt->fetch()){ // Loop the result
$ttl[] = $rating; // add to your array
// You can't echo an array like this.... echo $ttl;
// if you really want to, print_r($ttl);
}
}
$stmt->close(); // Close it
}
?>