Saving while results into an array - php

Question

I am trying to query a database with a new 'WHERE (AND)' clause on each loop. The new clause is simply the number of the loop.
I need to save the count of rows returned per loop in an array which I am struggling with.
If for instance there is two loops, the first loop returns 2 rows, the second 3. I want the array to essentially be:
$portfolio_list = array(2,3);
Here is as far as I have managed to get, and no surprise its not working correctly.
Any help would be great!
$portfolios = 2;
$i = 1;
$portfolios_list = array();
while ($i <= $portfolios) {
$portfolio_sql = "
SELECT COUNT(portfolio_number) AS portfolio_uploaded_images
FROM exp_submissions
WHERE member_id = $member_id
AND type_id = '1'
AND portfolio_number = $i
";
$query = $this->EE->db->query($portfolio_sql);
$return = $query->result();
$portfolios_list[] = $return;
$i++;
}

Answer 1

please try this
$portfolios = 2;
for ($i = 1; $i < $portfolios+1; $i++) { //this runs 2 times
$where_array = array('member_id' => $member_id, 'type_id' => '1', 'portfolio_number' => $i);
$this->db->where( $where_array );
//$this->db->select('*'); // I guess you do not need select for this
$portfolio_list[$i] = $this->db->get('exp_submissions')->num_rows();
}
var_dump($portfolio_list);

Answer 2

Try this
$portfolios = 2;
$i = 1;
while ($i <= $portfolios) {
$portfolio_sql = "
SELECT COUNT(portfolio_number) AS portfolio_uploaded_images
FROM exp_submissions
WHERE member_id = $member_id
AND type_id = '1'
AND portfolio_number = $i
";
$query = $this->db->query($portfolio_sql);
$portfolios_list[$i] = $query->num_rows; // This will give the No of rows fetched
$i++;
}
foreach($portfolios_list as $row => $no)
{
echo "The Results Fetched from query no ".$row." is ".$no;
}