<?php
$servername = "192.168.10.5:3307";
$username = "form";
$password = "form";
$dbname = "Sales_Orders2";

$NewCompany=$_POST['NewCompany'];

if ( !empty($NewCustomer)) {
    echo '<meta http-equiv="refresh" content="0; url=http://192.168.10.5">';
    exit;
} else {
    // Create connection
    $conn = new mysqli($servername, $username, $password, $dbname);

    $sql = "INSERT INTO Sales_Orders_dynlist_items (listid,name,value) VALUES ('1', '$NewCompany', '$NewCompany')";

   if ($conn->query($sql) === TRUE) {
        echo '<meta http-equiv="refresh" content="0; url=http://192.168.10.5">';
        exit;
    } else {
        echo "Error: " . $sql . "<br>" . $conn->error;
    }
};
$conn->close();
?>