diff --git a/www/index.php b/www/index.php
index 2885f62..388a3db 100644
--- a/www/index.php
+++ b/www/index.php
@@ -134,23 +134,23 @@
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="ja">
   <head>
     <meta content="text/html; charset=utf-8" http-equiv="content-type" />
-    <meta name="title" content="<?php echo $lang == 'en' ? SITE_NAME_EN : SITE_NAME_JA ?>" />
-    <meta name="description" content="<?php echo $lang == 'en' ? SITE_DESC_EN : SITE_DESC_JA?>" />
+    <meta name="title" content="<?= $lang == 'en' ? SITE_NAME_EN : SITE_NAME_JA ?>" />
+    <meta name="description" content="<?= $lang == 'en' ? SITE_DESC_EN : SITE_DESC_JA?>" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title><?php echo $lang == 'en' ? SITE_NAME_EN : SITE_NAME_JA ?></title>
+    <title><?= $lang == 'en' ? SITE_NAME_EN : SITE_NAME_JA ?></title>
     <link rel="stylesheet" type="text/css" href="/style.css" />
   </head>
   <body>
-    <?php if ($err != '') { ?><div class="error"><?php echo $err; ?></div> <?php } ?>
-    <h1><img class="headerimg" src="/logo.jpg" alt="<?php echo LOC_LOGO; ?>" /></h1>
+    <?php if ($err != '') { ?><div class="error"><?= $err; ?></div> <?php } ?>
+    <h1><img class="headerimg" src="/logo.jpg" alt="<?= LOC_LOGO; ?>" /></h1>
     <div class="body">
       <p>
-        <a href="/"><?php echo LOC_TOP; ?></a> |
-        <?php echo LOC_BETA_BAN1; ?><a href="https://gitler.moe/TechnicalSuwako/hozon.site/issues"><?php echo LOC_BETA_BAN2; ?></a>
+        <a href="/"><?= LOC_TOP; ?></a> |
+        <?= LOC_BETA_BAN1; ?><a href="https://gitler.moe/TechnicalSuwako/hozon.site/issues"><?= LOC_BETA_BAN2; ?></a>
       </p>
       <form method="post" action="/">
         <div class="switchlang">
-          <input class="langchange" type="submit" name="langchange" value="<?php echo $lang == 'en' ? '日本語に更新' : 'Change to English'; ?>" />
+          <input class="langchange" type="submit" name="langchange" value="<?= $lang == 'en' ? '日本語に更新' : 'Change to English'; ?>" />
         </div>
       </form>
       <hr />
@@ -158,31 +158,31 @@
 <?php
   if (count($_POST) > 0 && count($exists) > 0) {
 ?>
-        <h3><?php echo $url; ?></h3>
-        <?php echo LOC_SUDENI_HOZONSARETA_PAGE; ?><br />
+        <h3><?= $url; ?></h3>
+        <?= LOC_SUDENI_HOZONSARETA_PAGE; ?><br />
 <?php
     foreach ($exists as $e) {
       echo '<a href="/archive/'.$e.'/'.$url.'">'.date('Y年m月d日 H:i:s', $e).'</a>';
       echo "<br />";
     }
 ?>
-        <p><?php echo LOC_HONTONI_TETUDUKI; ?></p>
+        <p><?= LOC_HONTONI_TETUDUKI; ?></p>
         <form action="/" method="post">
-          <input type="hidden" name="hozonsite" value="<?php echo $_POST['hozonsite']; ?>" />
+          <input type="hidden" name="hozonsite" value="<?= $_POST['hozonsite']; ?>" />
           <input type="hidden" name="agree" value="1" />
           <div class="submit">
-            <input type="submit" name="submit" value="<?php echo LOC_HAI_HOZONSITEKUDASAI; ?>" />
+            <input type="submit" name="submit" value="<?= LOC_HAI_HOZONSITEKUDASAI; ?>" />
           </div>
         </form>
 <?php
   }
   else {
 ?>
-        <?php echo LOC_DONO_PAGE_HOZON; ?>
+        <?= LOC_DONO_PAGE_HOZON; ?>
         <form action="/" method="post">
           <input type="text" name="hozonsite" value="" />
           <div class="submit">
-            <input type="submit" name="submit" value="<?php echo LOC_HOZON; ?>" />
+            <input type="submit" name="submit" value="<?= LOC_HOZON; ?>" />
           </div>
         </form>
 <?php
@@ -191,7 +191,7 @@
       </div>
     </div>
     <div class="footer">
-      <a href="https://gitler.moe/TechnicalSuwako/hozon.site"><img src="/git.png" alt="<?php echo LOC_SOURCE_CODE; ?>" /></a> | <a href="https://076.moe"><?php echo LOC_076_AIB; ?></a>
+      <a href="https://gitler.moe/TechnicalSuwako/hozon.site"><img src="/git.png" alt="<?= LOC_SOURCE_CODE; ?>" /></a> | <a href="https://076.moe"><?= LOC_076_AIB; ?></a>
     </div>
   </body>
 </html>
