Реальный способ проверить загруженный тип файла

<!--?php <br ?-->// Here we specify all the type of files we want to accept $extension = array("application/pdf", "image/jpeg", "image/png", "image/gif"); if(isset($_POST['submit'])){ exec("file -i ".$_FILES['inputName']['tmp_name'], $output); $type = explode(':', (string)$output[0]); } // Here we check our file with our needs if (isset($_FILES['inputName']) && $_FILES['inputName']['error'] == UPLOAD_ERR_OK && $_FILES['inputName']['size'] <= 10000000 && in_array(trim($type[1]), $extension)){ var_dump($_FILES['inputName']['tmp_name']); }else{ die("File Error"); }