SQLite3 count rows - php

Question

I am trying to count the number of rows returned from a query
This is currently the code I have
function products()
{
$loggedin = loggedin();
$db = db();
$stmt = $db->prepare('SELECT game_id, name, developer, price FROM game WHERE quantity > 0 ORDER BY game_id DESC');
$result = $stmt->execute();
$row1 = $result->fetchArray();
$rows = count ($row1);
if ($rows == 0)
{
echo "Sold out";
}
else
{
while ($row = $result->fetchArray()) {
echo '<p>'.$row['name'].'</p>';
}
}
}
At present it will only return the first item in the table, even though all rows match
if I change my code to
function products()
{
$loggedin = loggedin();
#$page = 'index.php';
$db = db();
$stmt = $db->prepare('SELECT game_id, name, developer, price FROM game WHERE quantity > 11 ORDER BY game_id DESC');
$result = $stmt->execute();
while ($row = $result->fetchArray()) {
echo '<p>'.$row['name'].'</p>';
}
Then I get all the result from the table correctly
if I change the query to a value outside the quantity like
quantity > 20
then I get the error
Warning: count(): Parameter must be an array or an object that implements Countable
what I would like it to do is if row1 is == 0 the show sold out other wise display all the rows
so if a row does not match the query it will not be included in the results
I can not use PDO, and I have not been able to find out to use count on https://www.php.net/manual/en/book.sqlite3.php

Answer 1

That should do it.
function products() {
$loggedin = loggedin();
$db = db();
$games = $db->query('SELECT game_id, name, developer, price FROM game WHERE quantity > 0 ORDER BY game_id DESC');
if (empty($games->fetchArray())) {
echo "Sold out";
return;
}
// Reset the result back to the first game
$games->reset();
while ($game = $games->fetchArray(SQLITE3_ASSOC)) {
echo '<p>'.$game['name'].'</p>';
}
}

Answer 2

I'd do something like:
function products() {
$db = db();
$stmt = $db->prepare('SELECT game_id, name, developer, price FROM game WHERE quantity > 0 ORDER BY game_id DESC');
$result = $stmt->execute();
$count = 0;
while ($row = $result->fetchArray()) {
echo '<p>'.$row['name'].'</p>';
$count++;
}
if ($count == 0) {
echo "<p>Sold out</p>";
}
}
The only way to find out how many rows were returned by a query is to fetch all of them (and you don't actually care how many rows were returned, just that at least one was). So just increment a counter once per row returned, and after stepping through all rows, if that counter is still 0, it means no rows were returned, and you can display the relevant message.