Insert Multiple not empty - php

Question

I need to insert multple records i have this right now.
Its adds also the empty field because i dont know how to exclude them from inserting:
if ($_SERVER['REQUEST_METHOD'] == 'POST'){
/* as_factuurregel */
$product1 = $_POST['product1'];
$product2 = $_POST['product2'];
$product3 = $_POST['product3'];
$product4 = $_POST['product4'];
$product5 = $_POST['product5'];
$product6 = $_POST['product6'];
$aantal1 = $_POST['aantal1'];
$aantal2 = $_POST['aantal2'];
$aantal3 = $_POST['aantal3'];
$aantal4 = $_POST['aantal4'];
$aantal5 = $_POST['aantal5'];
$aantal6 = $_POST['aantal6'];
$sql = "INSERT INTO as_factuurregel (productid, factuurid, aantal)
VALUES ('$product1', 'test', '$aantal1'),('$product2', 'test', '$aantal2'),('$product4', 'test', '$aantal3'),('$product5', 'test', '$aantal5'),('$product5', 'test', '$aantal5')";
Thanks for helping.
Greetings

Answer 1

Try this:
$product1 = $_POST['product1'];
$product2 = $_POST['product2'];
$product3 = $_POST['product3'];
$product4 = $_POST['product4'];
$product5 = $_POST['product5'];
$product6 = $_POST['product6'];
$array_one = array($product1,$product2,$product3,$product4,$product5,$product6);
$aantal1 = $_POST['aantal1'];
$aantal2 = $_POST['aantal2'];
$aantal3 = $_POST['aantal3'];
$aantal4 = $_POST['aantal4'];
$aantal5 = $_POST['aantal5'];
$aantal6 = $_POST['aantal6'];
$array_two = array($aantal1,$aantal2,$aantal3,$aantal4,$aantal5,$aantal6);
$newArray = array();
foreach ($array_one as $key => $value) {
if($value != '' && $array_two[$key] != '')
{
$newArray[] = "('$value','test','$array_two[$key]')";
}
}
$values = implode(",",$newArray);
$sql = "INSERT INTO as_factuurregel (productid, factuurid, aantal)
VALUES ".$values;
You can optimize this solution if you optimize your input fields and move them in an array.