This one's driving me round the bend, and just can't work it out. The script works fine up until when I try to echo the final mysqli query (zen_id). I have tested the query outside of the if and while statements and it works fine. The query before it also has no troubles retrieving $model_array['model']
and echoes it flawlessly. I don't get any errors, simply nothing is outputted. A vardump of $id_array['zen_system_id']
gives me null, as does $id_array
, $result_2
also produces a large number of null values in this format: object(mysqli_result)#5 (5) { ["current_field"]=> int(0) ["field_count"]=> int(1) ["lengths"]=> NULL ["num_rows"]=> int(0) ["type"]=> int(0) }
I think i'm probably misssing something quite obvious here I'm just lost at the moment, possibly something to do with the while function or something??
//Connect to Database
$mysqli = mysqli_connect("localhost", "login", "user", "database");
//Check Connection
if ($mysqli->connect_errno) {
echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error;
}
$result_1 = mysqli_query($mysqli,"SELECT `product_id` FROM oc_product");
while ($rows_1 = mysqli_fetch_array($result_1))
{
$product_id = $rows_1['product_id'];
$result = mysqli_query($mysqli,"SELECT `product_id` FROM `oc_product_option_value` WHERE `product_id`=$product_id");
$rows = mysqli_fetch_array($result);
//echo $product_id . " " . $rows['product_id'] . "</br>";
if($rows['product_id'] == null)
{
$result = mysqli_query($mysqli,"SELECT `model` FROM `oc_product` WHERE `product_id`=$product_id");
$model_array = mysqli_fetch_array($result);
$model = $model_array['model'] . "</br>";
//echo $model;
$result_2 = mysqli_query($mysqli,"SELECT `zen_system_id` FROM `oc_wholesale_link` WHERE `model_id`='" . $model . "'");
$id_array = mysqli_fetch_array($result_2);
echo $zen_id = $id_array['zen_system_id'];
}
}