// Some params if(isset($_GET['r'])){ $res = $_GET['r']; } else { $res = 4; } if(isset($_GET['c'])){ $colour = $_GET['c']; $colour = str_replace("-", ",", $colour); $colour_parts = explode(",", $colour); $colour_r = $colour_parts[0]; $colour_g = $colour_parts[1]; $colour_b = $colour_parts[2]; } else { $colour_r = '119'; $colour_g = '119'; $colour_b = '119'; } if(isset($_GET['w'])){ $weight = $_GET['w']; } else { $weight = 2.2; } ?>