diff --git a/config.sample.php b/config.sample.php
index 0858e5d..678ca77 100644
--- a/config.sample.php
+++ b/config.sample.php
@@ -1,19 +1,21 @@
 <?php
   // アプリ
-  define('APP_NAME', 'LoliPHP');
+  define("APP_NAME", "LoliPHP");
+  define("HTML_VER", "XHTML"); // XHTML、HTML5
+  define("CAN_MOBILE", false);
 
   // データベース
-  define('DB_CONN', 'mysql');
-  define('DB_HOST', 'localhost');
-  define('DB_PORT', 3306);
-  define('DB_USER', '');
-  define('DB_PASS', '');
-  define('DB_NAME', '');
+  define("DB_CONN", "mysql");
+  define("DB_HOST", "localhost");
+  define("DB_PORT", 3306);
+  define("DB_USER", "");
+  define("DB_PASS", "");
+  define("DB_NAME", "");
 
   // CURL
-  define('API_URI', '');
-  define('API_AUTH', null);
+  define("API_URI", "");
+  define("API_AUTH", null);
 
   // ハッシュ
-  define('PASSWD_PEPPER', ''); // オススメ：pwgen -ycnB1 40
+  define("PASSWD_PEPPER", ""); // オススメ：pwgen -ycnB1 40
 ?>
diff --git a/helper.php b/helper.php
index a992f97..a6c2bc9 100644
--- a/helper.php
+++ b/helper.php
@@ -1,13 +1,13 @@
 <?php 
-  require_once('helper/cookie.php'); // クッキー・Cookie
-  require_once('helper/curl.php'); // CURL
-  require_once('helper/db.php'); // データベースエンジン・Database engine
-  require_once('helper/debug.php'); // デバッガー・Debugger
-  require_once('helper/hash.php'); // ハッシュ・Hash
-  require_once('helper/mail.php'); // メール・Mail
-  require_once('helper/php8compat.php'); // PHP8を実行していない場合・If not running PHP8
-  require_once('helper/request.php'); // リクエスト・Request
-  require_once('helper/session.php'); // セッション・Session
-  require_once('helper/upload.php'); // ファイルアップロード・File upload
-  require_once('helper/uuid.php'); // UUIDv4
+  require_once("helper/cookie.php"); // クッキー・Cookie
+  require_once("helper/curl.php"); // CURL
+  require_once("helper/db.php"); // データベースエンジン・Database engine
+  require_once("helper/debug.php"); // デバッガー・Debugger
+  require_once("helper/hash.php"); // ハッシュ・Hash
+  require_once("helper/mail.php"); // メール・Mail
+  require_once("helper/php8compat.php"); // PHP8を実行していない場合・If not running PHP8
+  require_once("helper/request.php"); // リクエスト・Request
+  require_once("helper/session.php"); // セッション・Session
+  require_once("helper/upload.php"); // ファイルアップロード・File upload
+  require_once("helper/uuid.php"); // UUIDv4
 ?>
diff --git a/helper/cookie.php b/helper/cookie.php
index d65cf03..1a1a40e 100644
--- a/helper/cookie.php
+++ b/helper/cookie.php
@@ -1,8 +1,7 @@
 <?php
   function getcookie (string $name): string {
-    return htmlspecialchars($_COOKIE[$name]);
+    return isset($_COOKIE[$name]) ? htmlspecialchars($_COOKIE[$name]) : "";
   }
-
   function getrawcookie (string $name): string {
     return $_COOKIE[$name];
   }
diff --git a/helper/curl.php b/helper/curl.php
index ace03ca..64aa063 100644
--- a/helper/curl.php
+++ b/helper/curl.php
@@ -1,20 +1,20 @@
 <?php
-  require_once('../config.php');
+  require_once("../config.php");
 
-  function lolicurl ($url, $param='', $method='get', $contenttype='json') {
+  function lolicurl ($url, $param="", $method="get", $contenttype="json") {
     set_time_limit(0);
-    $header = ['Content-Type: application/'.$contenttype, 'Host: '.str_replace('https://', '', API_URI)];
+    $header = ["Content-Type: application/".$contenttype, "Host: ".str_replace("https://", "", API_URI)];
 
     if (!is_null(API_AUTH)) {
-      $header[] = 'Authorization: Bearer '.API_AUTH;
+      $header[] = "Authorization: Bearer ".API_AUTH;
     }
 
     $ch = curl_init();
     curl_setopt($ch, CURLOPT_URL, API_URI.$url);
     curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
-    if ($method == 'post') {
+    if ($method == "post") {
       curl_setopt($ch, CURLOPT_POST, 1);
-      if ($param != '') curl_setopt($ch, CURLOPT_POSTFIELDS, $param);
+      if ($param != "") curl_setopt($ch, CURLOPT_POSTFIELDS, $param);
     }
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
 
diff --git a/helper/db.php b/helper/db.php
index 76b1223..d8fc221 100644
--- a/helper/db.php
+++ b/helper/db.php
@@ -1,37 +1,37 @@
 <?php
-  require_once('../config.php');
+  require_once("../config.php");
 
   /* val
    * 
-   * select => ['var1', 'var2'...]
-   * insert|update|where => ['key1' => 'value1', 'key2' => 'value2'...]
-   * order => ['var', 'asc'|'desc']
+   * select => ["var1", "var2"...]
+   * insert|update|where => ["key1" => "value1", "key2" => "value2"...]
+   * order => ["var", "asc"|"desc"]
    * limit => int
    * */
-  function lolidb (string $table, array $val, string $mode='select'): array|bool {
+  function lolidb (string $table, array $val, string $mode="select"): array|bool {
     // モードは違う場合、やめる。If the mode is wrong, stop.
-    if ($mode != 'select' && $mode != 'one' && $mode != 'insert' && $mode != 'update' && $mode != 'delete') {
+    if ($mode != "select" && $mode != "one" && $mode != "insert" && $mode != "update" && $mode != "delete") {
       dd("モードは「select」、「one」、「insert」、「update」、「delete」です。\nMode should be \"select\", \"one\", \"insert\", \"update\", or \"delete\".");
       return false;
     }
 
     // 順のチェック。Check order.
-    if (isset($val['order'])) {
+    if (isset($val["order"])) {
       // selectかoneじゃない場合。If not select or one.
-      if ($mode !== 'select' || $mode !== 'one') {
+      if ($mode !== "select" || $mode !== "one") {
         dd("「order」は「select」又は「one」のみで使えます。\n\"order\" can only be used with \"select\" or \"one\".");
         return false;
       }
 
       // 複数の場合。If multiple.
-      if (count($val['order'] > 1)) {
+      if (count($val["order"] > 1)) {
         dd("複数「order」は未対応です。\nMultiple \"order\" is not yet supported.");
         return false;
       }
 
-      // ascかdescかどうか。Whether it's asc or desc.
-      foreach ($val['order'] as $k => $v) {
-        if ($v !== 'asc' && $v !== 'desc') {
+      // ascかdescかどうか。Whether it"s asc or desc.
+      foreach ($val["order"] as $k => $v) {
+        if ($v !== "asc" && $v !== "desc") {
           dd("「order」は「asc」又は「desc」です。\n\"order\" should be \"asc\" or \"desc\".");
           return false;
         }
@@ -39,28 +39,28 @@
     }
 
     // 限界のチェック。Check limit.
-    if (($mode === 'select' || $mode === 'one') && isset($val['limit'])) {
+    if (($mode === "select" || $mode === "one") && isset($val["limit"])) {
       // oneの場合。If one.
-      if ($mode === 'one') {
+      if ($mode === "one") {
         dd("「one」の場合、「limit」はいつでも「1」です。「limit」は1以上は必要の場合、「select」を使って下さい。\nIn case of \"one\", \"limit\" is always \"1\". If \"limit\" needs to be more than \"1\", please use \"select\".");
         return false;
       }
 
       // selectじゃない場合。If not select.
-      else if ($mode !== 'select') {
+      else if ($mode !== "select") {
         dd("「insert」、「update」及び「delete」で、「limit」を使えません。\n\"limit\" cannot be used with \"insert\", \"update\", and \"delete\".");
         return false;
       }
     }
 
     // insertの場合。In case of insert.
-    if ($mode === 'insert' && !isset($val['insert'])) {
+    if ($mode === "insert" && !isset($val["insert"])) {
       dd("「insert」モードの場合、「insert」値は必須です。\nIn case of \"insert\" mode, \"insert\" value is necessary.");
       return false;
     }
 
     // updateの場合。In case of update.
-    if ($mode === 'update' && !isset($val['update'])) {
+    if ($mode === "update" && !isset($val["update"])) {
       dd("「update」モードの場合、「update」値は必須です。\nIn case of \"update\" mode, \"update\" value is necessary.");
       return false;
     }
@@ -69,94 +69,94 @@
     $mysqli = mysqli_connect(DB_HOST, DB_USER, DB_PASS, DB_TABLE);
     $result = null;
 
-    if ($mode == 'select' || $mode == 'one') {
+    if ($mode == "select" || $mode == "one") {
       // select値がなければ、全部を選択する。If there is no select value, select everything.
-      if (!isset($val['select'])) {
-        $val['select'] = ['*'];
+      if (!isset($val["select"])) {
+        $val["select"] = ["*"];
       }
 
-      $query = 'SELECT '.$val['select'].' FROM '.$table;
+      $query = "SELECT ".$val["select"]." FROM ".$table;
 
-      if (isset($val['where'])) {
-        $query .= ' WHERE ';
-        foreach ($val['where'] as $k => $v) {
-          $query .= $k.' = '.$v;
-          if ($k !== array_key_last($val['where'])) $query .= ' AND ';
+      if (isset($val["where"])) {
+        $query .= " WHERE ";
+        foreach ($val["where"] as $k => $v) {
+          $query .= $k." = ".$v;
+          if ($k !== array_key_last($val["where"])) $query .= " AND ";
         }
       }
 
-      if (isset($val['order'])) {
-        $query .= ' ORDER BY ';
-        foreach ($val['order'] as $k => $v) {
+      if (isset($val["order"])) {
+        $query .= " ORDER BY ";
+        foreach ($val["order"] as $k => $v) {
           $query .= $k;
-          $query .= ' '.strtoupper($v);
+          $query .= " ".strtoupper($v);
         }
       }
 
-      if ($mode == 'one') {
-        $query .= ' LIMIT 1';
+      if ($mode == "one") {
+        $query .= " LIMIT 1";
       }
       else {
-        if (isset($val['limit'])) {
-          $query .= ' LIMIT '.(int)$val['limit'];
+        if (isset($val["limit"])) {
+          $query .= " LIMIT ".(int)$val["limit"];
         }
       }
 
-      $result = mysqli_query($mysqli, $query.';');
+      $result = mysqli_query($mysqli, $query.";");
       $row = mysqli_fetch_assoc($result);
     }
     else {
-      if ($mode == 'insert') {
-        $query .= 'INSERT INTO '.$table.' (';
-        foreach ($val['insert'] as $k => $v) {
+      if ($mode == "insert") {
+        $query .= "INSERT INTO ".$table." (";
+        foreach ($val["insert"] as $k => $v) {
           $query .= $k;
-          if ($k !== array_key_last($val['insert'])) {
-            $query .= ', ';
+          if ($k !== array_key_last($val["insert"])) {
+            $query .= ", ";
           }
         }
-        $query .= ') VALUES (';
-        foreach ($val['insert'] as $k => $v) {
+        $query .= ") VALUES (";
+        foreach ($val["insert"] as $k => $v) {
           $query .= $v;
-          if ($k !== array_key_last($val['insert'])) {
-            $query .= ', ';
+          if ($k !== array_key_last($val["insert"])) {
+            $query .= ", ";
           }
         }
-        $query .= ')';
+        $query .= ")";
       }
-      else if ($mode == 'update') {
-        $query .= 'UPDATE '.$table.' SET ';
-        foreach ($val['update'] as $k => $v) {
-          $query .= $k.' = '.$v;
-          if ($k !== array_key_last($val['update'])) {
-            $query .= ', ';
+      else if ($mode == "update") {
+        $query .= "UPDATE ".$table." SET ";
+        foreach ($val["update"] as $k => $v) {
+          $query .= $k." = ".$v;
+          if ($k !== array_key_last($val["update"])) {
+            $query .= ", ";
           }
         }
 
-        if (isset($val['where'])) {
-          $query .= ' WHERE ';
-          foreach ($val['where'] as $k => $v) {
-            $query .= $k.' = '.$v;
-            if ($k !== array_key_last($val['where'])) {
-              $query .= ' AND ';
+        if (isset($val["where"])) {
+          $query .= " WHERE ";
+          foreach ($val["where"] as $k => $v) {
+            $query .= $k." = ".$v;
+            if ($k !== array_key_last($val["where"])) {
+              $query .= " AND ";
             }
           }
         }
       }
-      else if ($mode == 'delete') {
-        $query .= 'DELETE FROM '.$table;
+      else if ($mode == "delete") {
+        $query .= "DELETE FROM ".$table;
 
-        if (isset($val['where'])) {
-          $query .= ' WHERE ';
-          foreach ($val['where'] as $k => $v) {
-            $query .= $k.' = '.$v;
-            if ($k !== array_key_last($val['where'])) {
-              $query .= ' AND ';
+        if (isset($val["where"])) {
+          $query .= " WHERE ";
+          foreach ($val["where"] as $k => $v) {
+            $query .= $k." = ".$v;
+            if ($k !== array_key_last($val["where"])) {
+              $query .= " AND ";
             }
           }
         }
       }
 
-      $stmt = mysqli_prepare($mysqli, $query.';');
+      $stmt = mysqli_prepare($mysqli, $query.";");
     }
 
     return $row;
diff --git a/helper/debug.php b/helper/debug.php
index c235f9e..1fd9998 100644
--- a/helper/debug.php
+++ b/helper/debug.php
@@ -1,22 +1,23 @@
 <?php
   function dd ($val) {
-    echo '<pre>';
+    echo "<style> body { background: #232629; color: #fcfcfc; } </style>";
+    echo "<pre>";
     var_dump($val);
-    echo '</pre>';
+    echo "</pre>";
     die();
   }
 
-  function lolilog (string $val, string $mode='info'): bool {
-    if (!$file = fopen('./lolilog', 'a+')) {
-      dd('lolilogファイルを開けられません。');
+  function lolilog (string $val, string $mode="info"): bool {
+    if (!$file = fopen("./lolilog", "a+")) {
+      dd("lolilogファイルを開けられません。");
       return false;
     }
 
     $time = time();
-    $logtext = '['.date('Y-m-d H:i:s T', $time).' ('.$time.') - '.mb_strtoupper($mode)."]\n".$val."\n\n";
+    $logtext = "[".date("Y-m-d H:i:s T", $time)." (".$time.") - ".mb_strtoupper($mode)."]\n".$val."\n\n";
 
     if (fwrite($file, $logtext) === false) {
-      dd('lolilogファイルに書き出しに失敗しました。');
+      dd("lolilogファイルに書き出しに失敗しました。");
       return false;
     }
 
diff --git a/helper/hash.php b/helper/hash.php
index 1a80d93..b1ef201 100644
--- a/helper/hash.php
+++ b/helper/hash.php
@@ -1,5 +1,5 @@
 <?php
-  require_once('../config.php');
+  require_once("../config.php");
 
   function tokengen (int $bytes=24): string {
     return bin2hex(random_bytes($bytes));
@@ -12,18 +12,18 @@
     do {
       $cost++;
       $start = microtime(true);
-      password_hash('kero', PASSWORD_ARGON2ID, ['cost' => $cost]);
+      password_hash("kero", PASSWORD_ARGON2ID, ["cost" => $cost]);
       $end = microtime(true);
     } while (($end - $start) < $millisec);
 
-    $addpepper = hash_hmac('sha256', $password, PASSWD_PEPPER);
+    $addpepper = hash_hmac("sha256", $password, PASSWD_PEPPER);
     $addmd5 = md5($addpepper);
 
-    return password_hash($addmd5, PASSWORD_ARGON2ID, ['cost' => $cost]);
+    return password_hash($addmd5, PASSWORD_ARGON2ID, ["cost" => $cost]);
   }
 
   function verifypasswd (string $raw, string $crypt): bool {
-    $addpepper = hash_hmac('sha256', $raw, PASSWD_PEPPER);
+    $addpepper = hash_hmac("sha256", $raw, PASSWD_PEPPER);
     $addmd5 = md5($addpepper);
 
     return password_verify($addmd5, $crypt);
diff --git a/helper/php8compat.php b/helper/php8compat.php
index 938c0e1..f46165b 100644
--- a/helper/php8compat.php
+++ b/helper/php8compat.php
@@ -1,31 +1,31 @@
 <?php
-  if (!function_exists('str_starts_with')) {
+  if (!function_exists("str_starts_with")) {
     function str_starts_with (string $haystack, string $needle): bool {
-      return (string)$needle !== '' && strncmp($haystack, $needle, strlen($needle)) === 0;
+      return (string)$needle !== "" && strncmp($haystack, $needle, strlen($needle)) === 0;
     }
   }
 
-  if (!function_exists('str_ends_with')) {
+  if (!function_exists("str_ends_with")) {
     function str_ends_with (string $haystack, string $needle): bool {
       $needle_len = strlen($needle);
       return ($needle_len === 0 || 0 === substr_compare($haystack, $needle, - $needle_len));
     }
   }
 
-  if (!function_exists('str_contains')) {
+  if (!function_exists("str_contains")) {
     function str_contains (string $haystack, string $needle): bool {
-      return $needle !== '' && mb_strpos($haystack, $needle) !== false;
+      return $needle !== "" && mb_strpos($haystack, $needle) !== false;
     }
   }
 
-  if (!function_exists('array_key_first')) {
+  if (!function_exists("array_key_first")) {
     function array_key_first (array $array): int|string|null {
       if (!is_array($array) || empty($array)) return NULL;
       return array_keys($array)[0];
     }
   }
 
-  if (!function_exists('array_key_last')) {
+  if (!function_exists("array_key_last")) {
     function array_key_last (array $array): int|string|null {
       if (!is_array($array) || empty($array)) return NULL;
       return array_keys($array)[count($array)-1];
diff --git a/helper/request.php b/helper/request.php
index 8385293..b0fd25d 100644
--- a/helper/request.php
+++ b/helper/request.php
@@ -1,31 +1,31 @@
 <?php
 function request (string $name): array {
   if (isset($_POST[$name])) {
-    return ['post' => htmlspecialchars($name)];
+    return ["post" => htmlspecialchars($name)];
   }
   else if (isset($_GET[$name])) {
-    return ['get' => htmlspecialchars($name)];
+    return ["get" => htmlspecialchars($name)];
   }
   else if (isset($_REQUEST[$name])) {
-    return ['request' => htmlspecialchars($name)];
+    return ["request" => htmlspecialchars($name)];
   }
 
-  return ['error' => ''];
+  return ["error" => ""];
 }
 
 function request_all (): array {
   $res = [];
   if (!empty($_POST)) {
-    $res['post'] = [];
-    foreach ($_POST as $k => $v) $res['post'][$k] = htmlspecialchars($v);
+    $res["post"] = [];
+    foreach ($_POST as $k => $v) $res["post"][$k] = htmlspecialchars($v);
   }
   if (!empty($_GET)) {
-    $res['get'] = [];
-    foreach ($_GET as $k => $v) $res['get'][$k] = htmlspecialchars($v);
+    $res["get"] = [];
+    foreach ($_GET as $k => $v) $res["get"][$k] = htmlspecialchars($v);
   }
   if (!empty($_REQUEST)) {
-    $res['request'] = [];
-    foreach ($_REQUEST as $k => $v) $res['request'][$k] = htmlspecialchars($v);
+    $res["request"] = [];
+    foreach ($_REQUEST as $k => $v) $res["request"][$k] = htmlspecialchars($v);
   }
 
   return $res;
diff --git a/helper/upload.php b/helper/upload.php
index d29886a..fd18a8b 100644
--- a/helper/upload.php
+++ b/helper/upload.php
@@ -1,55 +1,55 @@
 <?php
-  require_once('uuid.php');
+  require_once("uuid.php");
 
   function fileextension (string $fname): string {
-    $ext = strrpos($fname, '.');
+    $ext = strrpos($fname, ".");
 
-    return $ext === false ? '' : substr($fname, $ext + 1);
+    return $ext === false ? "" : substr($fname, $ext + 1);
   }
 
   // ISOはfalseだったら、kB、MB、GB、TBになります。
   // trueの場合、KiB、MiB、GiB、TiBです。
   function humanreadablesize (int $byte, bool $iso=true): string {
     $bit = $iso ? 1024 : 1000;
-    $res = 'B';
+    $res = "B";
     $size = $byte;
 
     if ($byte >= ($bit * $bit * $bit * $bit * $bit)) {
 //dd(5);
       $size = $byte / ($bit * $bit * $bit * $bit * $bit);
-      $res = $iso ? 'TiB' : 'TB';
+      $res = $iso ? "TiB" : "TB";
     }
     else if ($byte >= ($bit * $bit * $bit * $bit)) {
 //dd(4);
       $size = $byte / ($bit * $bit * $bit * $bit);
-      $res = $iso ? 'TiB' : 'TB';
+      $res = $iso ? "TiB" : "TB";
     }
     else if ($byte >= ($bit * $bit * $bit)) {
 //dd(3);
       $size = $byte / ($bit * $bit * $bit);
-      $res = $iso ? 'GiB' : 'GB';
+      $res = $iso ? "GiB" : "GB";
     }
     else if ($byte >= ($bit * $bit)) {
 //dd(2);
       $size = $byte / ($bit * $bit);
-      $res = $iso ? 'MiB' : 'MB';
+      $res = $iso ? "MiB" : "MB";
     }
     else if ($byte >= $bit) {
 //dd(1);
       $size = $byte / $bit;
-      $res = $iso ? 'KiB' : 'kB';
+      $res = $iso ? "KiB" : "kB";
     }
 //dd($size);
 
-    return number_format($size, 2).' '.$res;
+    return number_format($size, 2)." ".$res;
   }
 
   function getmimetype (string $fname): string|null {
     $i = 0;
 
     foreach ($_FILES as $v) {
-      if ($fname == $v['name'][$i]) {
-        return $v['type'][$i];
+      if ($fname == $v["name"][$i]) {
+        return $v["type"][$i];
       }
 
       $i++;
@@ -63,20 +63,20 @@
     $i = 0;
 
     foreach ($_FILES as $file) {
-      if ($file['error'][$i] != 0) {
-        $err = '';
-        switch ($file['error'][$i]) {
-          case 1: $err = 'php.iniでの「upload_max_filesize」値が超えています。ファイルサイズ：'.humanreadablesize($file['size'][$i]); break;
-          case 2: $err = 'HTMLフォームの「MAX_FILE_SIZE」値が超えています。ファイルサイズ：'.humanreadablesize($file['size'][$i]); break;
-          case 3: $err = 'ファイルの部分の失敗です。'; break;
-          case 4: $err = 'ファイルをアップロード出来ません。'; break;
-          case 5: $err = '不明'; break;
-          case 6: $err = '仮フォルダがありません。'; break;
-          case 7: $err = 'uploadフォルダに書き込めません。'; break;
-          case 8: $err = '拡張子がありません。'; break;
+      if ($file["error"][$i] != 0) {
+        $err = "";
+        switch ($file["error"][$i]) {
+          case 1: $err = "php.iniでの「upload_max_filesize」値が超えています。ファイルサイズ：".humanreadablesize($file["size"][$i]); break;
+          case 2: $err = "HTMLフォームの「MAX_FILE_SIZE」値が超えています。ファイルサイズ：".humanreadablesize($file["size"][$i]); break;
+          case 3: $err = "ファイルの部分の失敗です。"; break;
+          case 4: $err = "ファイルをアップロード出来ません。"; break;
+          case 5: $err = "不明"; break;
+          case 6: $err = "仮フォルダがありません。"; break;
+          case 7: $err = "uploadフォルダに書き込めません。"; break;
+          case 8: $err = "拡張子がありません。"; break;
         }
 
-        $res[$file['name'][$i]] = $err;
+        $res[$file["name"][$i]] = $err;
       }
 
       $i++;
@@ -86,18 +86,18 @@
   }
 
   function loliupload (array $files): bool {
-    $dir = __DIR__.'/../public/static/upload/';
-    $fname = '';
+    $dir = __DIR__."/../public/static/upload/";
+    $fname = "";
 
     if (!file_exists($dir)) {
       mkdir($dir, 0777);
     }
 
     do {
-      $fname = uuid().'.'.fileextension($files['name'][0]);
+      $fname = uuid().".".fileextension($files["name"][0]);
     } while (file_exists($dir.$fname));
 
-    if (move_uploaded_file($files['tmp_name'][0], $dir.$fname)) {
+    if (move_uploaded_file($files["tmp_name"][0], $dir.$fname)) {
       return true;
     }
 
diff --git a/helper/uuid.php b/helper/uuid.php
index dc222b0..39985e8 100644
--- a/helper/uuid.php
+++ b/helper/uuid.php
@@ -1,7 +1,7 @@
 <?php
   function uuid () {
     return sprintf(
-      '%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
+      "%04x%04x-%04x-%04x-%04x-%04x%04x%04x",
       mt_rand(0, 0xffff), mt_rand(0, 0xffff), // 32bitlow
       mt_rand(0, 0xffff), // 16bitmid
       mt_rand(0, 0x0fff) | 0x4000, // 16bithigh
diff --git a/public/index.php b/public/index.php
index 4ff5a2a..7e90013 100644
--- a/public/index.php
+++ b/public/index.php
@@ -1,25 +1,36 @@
 <?php
-  require_once('../src/config.php');
-  require_once('../helper.php');
-  $path = $_SERVER['REQUEST_URI'] == '/' ? '/home' : $_SERVER['REQUEST_URI'];
-  if (!file_exists('../src'.$path.'/index.php')) $path = '/404';
+  if (session_status() == 1) session_start();
+  require_once("../src/config.php");
+  require_once("../helper.php");
+  $path = $_SERVER["REQUEST_URI"] == "/" ? "/home" : $_SERVER["REQUEST_URI"];
+  $path = explode("?", $path)[0];
+  if (!file_exists("../src".$path."/index.php")) $path = "/404";
 
-  require_once('../src'.$path.'/index.php');
+  require_once("../src".$path."/index.php");
 ?>
+<?php if (HTML_VER == "HTML5") { ?>
+<!DOCTYPE html>
+<html lang="ja">
+<?php } else { ?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemalocation="http://www.w3.org/MarkUp/SCHEMA/xhtml11.xsd" lang="ja" xml:lang="ja">
+<?php } ?>
 <head>
   <meta content="text/html; charset=utf-8" http-equiv="content-type" />
-  <meta name="title" content="<?php echo $sitename.': '.$title; ?>" />
-  <meta name="description" content="<?php echo $sitedesc; ?>" />
-  <meta property="og:title" content="<?php echo $sitename; ?>" />
+  <meta name="title" content="<?= $sitename.": ".$title ?>" />
+  <meta name="description" content="<?= $sitedesc ?>" />
+  <?php if (CAN_MOBILE) { ?><meta name="viewport" content="width=device-width, initial-scale=1.0" /><?php }?>
+<?php if (HTML_VER == "HTML5") { ?>
+  <meta property="og:title" content="<?= $sitename ?>" />
   <meta property="og:type" content="website" />
   <meta property="og:locale" content="ja_JP" />
-  <meta property="og:site_name" content="<?php echo $sitename.': '.$title; ?>" />
-  <meta property="og:url" content="<?php echo $siteurl; ?>" />
-  <meta property="og:image" content="./static/<?php echo $thumbnail; ?>" />
-  <title><?php echo $sitename.': '.$title; ?></title>
+  <meta property="og:site_name" content="<?= $sitename.": ".$title ?>" />
+  <meta property="og:url" content="<?= $siteurl ?>" />
+  <meta property="og:image" content="./static/<?= $thumbnail ?>" />
+<?php } ?>
+  <title><?= $sitename.": ".$title ?></title>
   <link rel="stylesheet" type="text/css" href="./static/style.css" />
+  <?php if (isset($css)) { ?><link rel="stylesheet" type="text/css" href="./static/<?= $css ?>.css" /> <?php } ?>
 </head>
 <body>
   <?php include_once($childview); ?>
diff --git a/src/404/index.php b/src/404/index.php
index 42aa00c..b53c139 100644
--- a/src/404/index.php
+++ b/src/404/index.php
@@ -1,4 +1,4 @@
 <?php
-  $title = 'エラー';
-  $childview = '../ui/404/index.php';
+  $title = "エラー";
+  $childview = "../ui/404/index.php";
 ?>
diff --git a/src/about/index.php b/src/about/index.php
index 1673e49..1dd3438 100644
--- a/src/about/index.php
+++ b/src/about/index.php
@@ -1,6 +1,6 @@
 <?php
-  $title = 'helperテスト';
-  $childview = '../ui/about/index.php';
+  $title = "helperテスト";
+  $childview = "../ui/about/index.php";
 
   dd($title);
 ?>
diff --git a/src/config.php b/src/config.php
index a98bf10..07f8cad 100644
--- a/src/config.php
+++ b/src/config.php
@@ -1,7 +1,7 @@
 <?php
-  $sitename = 'アプリ';
-  $sitedesc = 'PHP用エンジンです。';
-  $siteurl  = 'http://127.0.0.1:8000'; // cd ~/dev/phpengine/public && php -S 127.0.0.1:8000
-  $thumbnail = 'applogo.png';
-  include('../public/index.php');
+  $sitename = "アプリ";
+  $sitedesc = "PHP用エンジンです。";
+  $siteurl  = "http://127.0.0.1:8000"; // cd ~/dev/phpengine/public && php -S 127.0.0.1:8000
+  $thumbnail = "applogo.png";
+  include("../public/index.php");
 ?>
diff --git a/src/cookie/index.php b/src/cookie/index.php
index bed3a73..26a3645 100644
--- a/src/cookie/index.php
+++ b/src/cookie/index.php
@@ -1,15 +1,15 @@
 <?php
-  if (isset($_POST['lolicon_cookie'])) {
+  if (isset($_POST["lolicon_cookie"])) {
     // ２時間後消えられます。
-    setcookie('lolicon_cookie', $_POST['lolicon_cookie'], ['expires' => time()+60*60*2, 'path' => '/cookie', 'httponly' => true]);
-    //setrawcookie('lolicon_cookie', $_POST['lolicon_cookie'], ['expires' => time()+60*60*2, 'path' => '/cookie', 'httponly' => true]);
-    header('Location: /cookie', 301);
+    setcookie("lolicon_cookie", $_POST["lolicon_cookie"], ["expires" => time()+60*60*2, "path" => "/cookie", "httponly" => true]);
+    //setrawcookie("lolicon_cookie", $_POST["lolicon_cookie"], ["expires" => time()+60*60*2, "path" => "/cookie", "httponly" => true]);
+    header("Location: /cookie", 301);
   }
 
-  $title = 'クッキー'; // 必須・Requirement
-  $sitedesc = 'クッキーの例え'; // config.phpの文字の交換・Change character of config.php
-  $siteurl  .= '/cookie'; // config.phpの文字に追加・Add to character of config.php
-  $childview = '../ui/cookie/index.php'; // 必須・Requirement
-  $mycookie = getcookie('lolicon_cookie');
-  //$mycookie = getrawcookie('lolicon_cookie');
+  $title = "クッキー"; // 必須・Requirement
+  $sitedesc = "クッキーの例え"; // config.phpの文字の交換・Change character of config.php
+  $siteurl  .= "/cookie"; // config.phpの文字に追加・Add to character of config.php
+  $childview = "../ui/cookie/index.php"; // 必須・Requirement
+  $mycookie = getcookie("lolicon_cookie");
+  //$mycookie = getrawcookie("lolicon_cookie");
 ?>
diff --git a/src/curl/index.php b/src/curl/index.php
index bd85de7..08362fa 100644
--- a/src/curl/index.php
+++ b/src/curl/index.php
@@ -1,9 +1,9 @@
 <?php
-  $title = 'CURL';
-  $siteurl  .= '/curl';
-  $childview = '../ui/curl/index.php';
+  $title = "CURL";
+  $siteurl  .= "/curl";
+  $childview = "../ui/curl/index.php";
 
   // テストするには、config.phpでの「API_AUTH」値を「https://social.076.ne.jp」、又は違うPleromaインスタンスのホスト名に設定して下さい。
   // To test, please set "API_AUTH" in config.php to "https://social.076.ne.jp", or a different Pleroma instance host name.
-  $result = lolicurl('/api/pleroma/frontend_configurations');
+  $result = lolicurl("/api/pleroma/frontend_configurations");
 ?>
diff --git a/src/hash/index.php b/src/hash/index.php
index d78daa2..1c6abb8 100644
--- a/src/hash/index.php
+++ b/src/hash/index.php
@@ -1,9 +1,9 @@
 <?php
-  $title = 'パスワード創作';
-  $siteurl  .= '/hash';
-  $childview = '../ui/hash/index.php';
+  $title = "パスワード創作";
+  $siteurl  .= "/hash";
+  $childview = "../ui/hash/index.php";
 
-  if (isset($_POST['password'])) {
-    $setpasswd = setpasswd($_POST['password']);
+  if (isset($_POST["password"])) {
+    $setpasswd = setpasswd($_POST["password"]);
   }
 ?>
diff --git a/src/home/index.php b/src/home/index.php
index 0d3d73b..0b887b8 100644
--- a/src/home/index.php
+++ b/src/home/index.php
@@ -1,6 +1,6 @@
 <?php
-  $title = 'ホームページ'; // 必須・Requirement
-  $sitedesc = 'ホームページのみの説明。'; // config.phpの文字の交換・Change character of config.php
-  $siteurl  .= '/home'; // config.phpの文字に追加・Add to character of config.php
-  $childview = '../ui/home/index.php'; // 必須・Requirement
+  $title = "ホームページ"; // 必須・Requirement
+  $sitedesc = "ホームページのみの説明。"; // config.phpの文字の交換・Change character of config.php
+  $siteurl  .= "/home"; // config.phpの文字に追加・Add to character of config.php
+  $childview = "../ui/home/index.php"; // 必須・Requirement
 ?>
diff --git a/src/upload/index.php b/src/upload/index.php
index 09c8ad9..5d487f9 100644
--- a/src/upload/index.php
+++ b/src/upload/index.php
@@ -1,16 +1,16 @@
 <?php
-  $title = 'アップロード';
-  $sitedesc = 'アップロードです。';
-  $siteurl  .= '/upload';
-  $childview = '../ui/upload/index.php';
+  $title = "アップロード";
+  $sitedesc = "アップロードです。";
+  $siteurl  .= "/upload";
+  $childview = "../ui/upload/index.php";
 
-  if (isset($_FILES['file'])) {
-    //dd($_FILES['file']);
-    //dd(fileextension($_FILES['file']['name'][0]));
-    //dd(humanreadablesize($_FILES['file']['size'][0]));
-    //dd(getmimetype('egaokero.png')); // 存在する
-    //dd(getmimetype('klsdhnjkfjlsdjhnvgf.png')); // 存在しない
+  if (isset($_FILES["file"])) {
+    //dd($_FILES["file"]);
+    //dd(fileextension($_FILES["file"]["name"][0]));
+    //dd(humanreadablesize($_FILES["file"]["size"][0]));
+    //dd(getmimetype("egaokero.png")); // 存在する
+    //dd(getmimetype("klsdhnjkfjlsdjhnvgf.png")); // 存在しない
     //dd(verifyupload());
-    dd(loliupload($_FILES['file']));
+    dd(loliupload($_FILES["file"]));
   }
 ?>
diff --git a/ui/hash/index.php b/ui/hash/index.php
index 1ce488d..942681a 100644
--- a/ui/hash/index.php
+++ b/ui/hash/index.php
@@ -6,8 +6,8 @@ Please enter "mysecurepassword".<br />
 </form>
 
 <?php
-  if (isset($_POST['password'])) {
-    echo '創作したパスワード（plaintext→sha256+pepper→md5→Argon2id）： '.$setpasswd.'<br />';
-    echo 'ポスワードは「mysecurepassword」ですか？：'.(verifypasswd('mysecurepassword', $setpasswd) ? 'はい' : 'いいえ');
+  if (isset($_POST["password"])) {
+    echo "創作したパスワード（plaintext→sha256+pepper→md5→Argon2id）： ".$setpasswd."<br />";
+    echo "ポスワードは「mysecurepassword」ですか？：".(verifypasswd("mysecurepassword", $setpasswd) ? "はい" : "いいえ");
   }
 ?>
diff --git a/ui/home/index.php b/ui/home/index.php
index 3572eb4..df035a6 100644
--- a/ui/home/index.php
+++ b/ui/home/index.php
@@ -2,7 +2,7 @@
   <h1>例の一覧</h1>
   <ul>
   <?php
-    $scan = array_diff(scandir('../ui'), ['..', '.']);
+    $scan = array_diff(scandir("../ui"), ["..", "."]);
 
     foreach ($scan as $s) {
 ?>