"Not authorised", 'error_code' => 403, 'error_description' => "Not authorised", 'resource' => null ); echo json_encode($data); header('HTTP/1.0 403 Forbidden'); exit; } $message = urldecode((string)$_GET['message']); $number = (string)$_GET['number']; $number_array = explode('-', $number); if (!$message || !$number_array) { $data = array( 'error' => "Missing data", 'error_code' => 403, 'error_description' => "Missing data", 'resource' => null ); echo json_encode($data); header('HTTP/1.0 403 Forbidden'); exit; } foreach ($number_array as $number) { exec('echo "'.$message.'" | gammu --sendsms TEXT '.$number.' &'); }