//檢查並傳回欲拿到資料使用的變數 //$title = '' 則非必填 function db_CleanVars($var, $title = '', $filter = '') { global $db; #寫入資料庫過濾 $var = $db->real_escape_string($var); if($title){ if($var === "")redirect_header(WEB_URL, 3000, $title . '為必填!'); } if ($filter) { $var = filter_var($var, $filter); if (!$var) { redirect_header(WEB_URL, 3000, "不合法的{$title}"); } } return $var; } ```