diff --git a/adm/mail_form.php b/adm/mail_form.php
index ef73b7ad8..2fba6ec8d 100644
--- a/adm/mail_form.php
+++ b/adm/mail_form.php
@@ -1,51 +1,51 @@
 <?
 $sub_menu = "200300";
-include_once("./_common.php");
+include_once('./_common.php');
 
-auth_check($auth[$sub_menu], "r");
+auth_check($auth[$sub_menu], 'r');
 
 $token = get_token();
 
-$html_title = "회원메일";
+$html_title = '회원메일';
 
-if ($w == "u") {
-    $html_title .= "수정";
-    $readonly = " readonly";
+if ($w == 'u') {
+    $html_title .= '수정';
+    $readonly = ' readonly';
 
-    $sql = " select * from $g4[mail_table] where ma_id = '$ma_id' ";
+    $sql = " select * from {$g4['mail_table']} where ma_id = '$ma_id' ";
     $ma = sql_fetch($sql);
-    if (!$ma[ma_id]) 
-        alert("등록된 자료가 없습니다.");
+    if (!$ma['ma_id'])
+        alert('등록된 자료가 없습니다.');
 } else {
-    $html_title .= "입력";
+    $html_title .= '입력';
 }
 
-$g4[title] = $html_title;
-include_once("./admin.head.php");
+$g4['title'] = $html_title;
+include_once('./admin.head.php');
 ?>
 
 <form name=fmailform method=post action="./mail_update.php" onsubmit="return fmailform_check(this);">
 <input type=hidden name=w     value='<?=$w?>'>
-<input type=hidden name=ma_id value='<?=$ma[ma_id]?>'>
+<input type=hidden name=ma_id value='<?=$ma['ma_id']?>'>
 <input type=hidden name=token value='<?=$token?>'>
 <table cellpadding=0 cellspacing=0 width=100%>
 <colgroup width=20% class='col1 pad1 bold right'>
 <colgroup width=80% class='col2 pad2'>
 <tr>
-    <td colspan=2 class=title align=left><img src='<?=$g4[admin_path]?>/img/icon_title.gif'> <?=$html_title?></td>
+    <td colspan=2 class=title align=left><img src='<?=$g4['admin_path']?>/img/icon_title.gif'> <?=$html_title?></td>
 </tr>
 <tr><td colspan=2 class='line1'></td></tr>
 <tr class='ht'>
     <td>메일 제목</td>
-    <td><input type=text class='ed w99' name=ma_subject value='<?=$ma[ma_subject]?>' required itemname='메일 제목'></td>
+    <td><input type=text class='ed w99' name=ma_subject value='<?=$ma['ma_subject']?>' required itemname='메일 제목'></td>
 </tr>
 <tr>
     <td>메일 내용</td>
     <td class=lh>
-        <?=textarea_size("ma_content")?>
-        <textarea id=ma_content name=ma_content rows=20 class='ed w99'  required itemname='메일 내용'><?=$ma[ma_content]?></textarea>
+        <?=textarea_size('ma_content')?>
+        <textarea id=ma_content name=ma_content rows=20 class='ed w99'  required itemname='메일 내용'><?=$ma['ma_content']?></textarea>
         <br>{이름} , {별명} , {회원아이디} , {이메일} , {생일}
-        <br>위와 같이 HTML 코드에 삽입하면 해당 내용에 맞게 변환하여 메일 발송합니다. 
+        <br>위와 같이 HTML 코드에 삽입하면 해당 내용에 맞게 변환하여 메일 발송합니다.
     </td>
 </tr>
 <tr><td colspan=2 class='line1'></td></tr>
@@ -58,7 +58,7 @@ include_once("./admin.head.php");
 
 
 <script type="text/javascript">
-function fmailform_check(f) 
+function fmailform_check(f)
 {
     errmsg = "";
     errfld = "";
@@ -78,5 +78,5 @@ document.fmailform.ma_subject.focus();
 </script>
 
 <?
-include_once("./admin.tail.php");
+include_once('./admin.tail.php');
 ?>
diff --git a/adm/mail_list.php b/adm/mail_list.php
index 9e166cd6b..e3a8e89a3 100644
--- a/adm/mail_list.php
+++ b/adm/mail_list.php
@@ -4,19 +4,19 @@ include_once('./_common.php');
 
 auth_check($auth[$sub_menu], 'r');
 
-$sql_common = ' from $g4[mail_table] ';
+$sql_common = " from {$g4['mail_table']} ";
 
 // 테이블의 전체 레코드수만 얻음
-$sql = ' select COUNT(*) as cnt ' . $sql_common;
+$sql = " select COUNT(*) as cnt $sql_common ";
 $row = sql_fetch($sql);
-$total_count = $row[cnt];
+$total_count = $row['cnt'];
 
 $page = 1;
 
-$sql = 'select * $sql_common order by ma_id desc ';
+$sql = " select * $sql_common order by ma_id desc ";
 $result = sql_query($sql);
 
-$g4[title] = '회원메일발송';
+$g4['title'] = '회원메일발송';
 include_once('./admin.head.php');
 
 $colspan = 6;
@@ -26,7 +26,7 @@ $colspan = 6;
 <tr>
     <td width=20%>&nbsp;</td>
     <td width=60% align=center>&nbsp;</td>
-    <td width=20% align=right>건수 : <? echo $total_count ?>&nbsp;</td>
+    <td width=20% align=right>건수 : <?=$total_count ?>&nbsp;</td>
 </tr>
 </table>
 
@@ -39,33 +39,33 @@ $colspan = 6;
     <td width=120>작성일시</td>
     <td width=50>테스트</td>
     <td width=50>보내기</td>
-    <td width=80><a href="./mail_form.php"><img src="<?=$g4["admin_path"]?>/img/icon_insert.gif" border=0></a></td>
+    <td width=80><a href="./mail_form.php"><img src="<?=$g4['admin_path']?>/img/icon_insert.gif" border=0></a></td>
 </tr>
 <tr><td colspan="<?=$colspan?>" class="line2"></td></tr>
 
 <?
 for ($i=0; $row=mysql_fetch_array($result); $i++) {
-    $s_mod = icon('수정', './mail_form.php?w=u&ma_id=$row[ma_id]');
+    $s_mod = icon('수정', './mail_form.php?w=u&ma_id='.$row['ma_id']);
     //$s_del = icon('삭제', 'javascript:del("./mail_update.php?w=d&ma_id=$row[ma_id]");');
-    $s_del = '<a href='javascript:post_delete("mail_update.php", "$row[ma_id]");'><img src="img/icon_delete.gif" border=0 title="삭제" align="absmiddle"></a>';
-    $s_vie = icon('보기', './mail_preview.php?ma_id=$row[ma_id]', '_blank');
+    $s_del = '<a href="javascript:post_delete(\"mail_update.php\", '.$row['ma_id'].');"><img src="img/icon_delete.gif" border=0 title="삭제" align="absmiddle"></a>';
+    $s_vie = icon('보기', './mail_preview.php?ma_id='.$row['ma_id'], '_blank');
 
-    $num = number_format($total_count - ($page - 1) * $config[cf_page_rows] - $i);
+    $num = number_format($total_count - ($page - 1) * $config['cf_page_rows'] - $i);
 
     $list = $i%2;
-    echo '
-    <tr class="list$list col1 ht center">
+    echo "
+    <tr class=\"list{$list} col1 ht center\">
         <td>$num</td>
-        <td align=left>$row[ma_subject]</td>
-        <td>$row[ma_time]</td>
-        <td><a href="./mail_test.php?ma_id=$row[ma_id]">테스트</a></td>
-        <td><a href="./mail_select_form.php?ma_id=$row[ma_id]">보내기</a></td>
+        <td align=left>{$row['ma_subject']}</td>
+        <td>{$row['ma_time']}</td>
+        <td><a href=\"./mail_test.php?ma_id=$row[ma_id]\">테스트</a></td>
+        <td><a href=\"./mail_select_form.php?ma_id={$row['ma_id']}\">보내기</a></td>
         <td>$s_mod $s_del $s_vie</td>
-    </tr>';
+    </tr>";
 }
 
 if (!$i)
-    echo '<tr><td colspan="$colspan" height=100 align=center bgcolor="#FFFFFF">자료가 없습니다.</td></tr>';
+    echo "<tr><td colspan=\"$colspan\" height=100 align=center bgcolor=\"#FFFFFF\">자료가 없습니다.</td></tr>";
 ?>
 <tr><td colspan="<?=$colspan?>" class="line2"></td></tr>
 </table>
diff --git a/adm/mail_preview.php b/adm/mail_preview.php
index 1abc8e63d..b4853ef45 100644
--- a/adm/mail_preview.php
+++ b/adm/mail_preview.php
@@ -1,14 +1,14 @@
 <?
 $sub_menu = "200300";
-include_once("./_common.php");
-include_once("$g4[path]/lib/mailer.lib.php");
+include_once('./_common.php');
+include_once($g4['path'].'/lib/mailer.lib.php');
 
-auth_check($auth[$sub_menu], "r");
+auth_check($auth[$sub_menu], 'r');
 
-$se = sql_fetch("select ma_subject, ma_content from $g4[mail_table] where ma_id = '$ma_id' ");
+$se = sql_fetch("select ma_subject, ma_content from {$g4['mail_table']} where ma_id = '$ma_id' ");
 
-$subject = $se[ma_subject];
-$content = $se[ma_content] . "<hr size=0><p><span style='font-size:9pt; font-family:굴림'>▶ 더 이상 정보 수신을 원치 않으시면 [<a href='$g4[url]/$g4[bbs]/email_stop.php?mb_id=***&mb_md5=***' target='_blank'>수신거부</a>] 해 주십시오.</span></p>";
+$subject = $se['ma_subject'];
+$content = $se['ma_content'] . "<hr size=0><p><span style='font-size:9pt; font-family:굴림'>▶ 더 이상 정보 수신을 원치 않으시면 [<a href='{$g4['url']}/{$g4['bbs']}/email_stop.php?mb_id=***&amp;mb_md5=***' target='_blank'>수신거부</a>] 해 주십시오.</span></p>";
 
 echo "<span style='font-size:9pt;'>$subject</span>";
 echo "<hr size=0>";
diff --git a/adm/mail_select_form.php b/adm/mail_select_form.php
index a3869dc25..65ddb7bdd 100644
--- a/adm/mail_select_form.php
+++ b/adm/mail_select_form.php
@@ -1,28 +1,28 @@
 <?
 $sub_menu = "200300";
-include_once("./_common.php");
+include_once('./_common.php');
 
-if (!$config[cf_email_use])
-    alert("환경설정에서 \'메일발송 사용\'에 체크하셔야 메일을 발송할 수 있습니다.");
+if (!$config['cf_email_use'])
+    alert('환경설정에서 \'메일발송 사용\'에 체크하셔야 메일을 발송할 수 있습니다.');
 
-auth_check($auth[$sub_menu], "r");
+auth_check($auth[$sub_menu], 'r');
 
-$sql = "select * from $g4[mail_table] where ma_id = '$ma_id' ";
+$sql = "select * from {$g4['mail_table']} where ma_id = '$ma_id' ";
 $ma = sql_fetch($sql);
-if (!$ma[ma_id])
-    alert("보내실 내용을 선택하여 주십시오.");
+if (!$ma['ma_id'])
+    alert('보내실 내용을 선택하여 주십시오.');
 
 // 전체회원수
-$sql = "select COUNT(*) as cnt from $g4[member_table] ";
+$sql = "select COUNT(*) as cnt from {$g4['member_table']} ";
 $row = sql_fetch($sql);
-$tot_cnt = $row[cnt];
+$tot_cnt = $row['cnt'];
 
 // 탈퇴대기회원수
-$sql = "select COUNT(*) as cnt from $g4[member_table] where mb_leave_date <> '' ";
+$sql = "select COUNT(*) as cnt from {$g4['member_table']} where mb_leave_date <> '' ";
 $row = sql_fetch($sql);
-$finish_cnt = $row[cnt];
+$finish_cnt = $row['cnt'];
 
-$last_option = explode("||", $ma[ma_last_option]);
+$last_option = explode("||", $ma['ma_last_option']);
 for ($i=0; $i<count($last_option); $i++) {
     $option = explode("=", $last_option[$i]);
     // 동적변수
@@ -37,8 +37,8 @@ if (!isset($mb_mailling)) $mb_mailling = 1;
 if (!isset($mb_sex)) $mb_sex = 1;
 if (!isset($mb_area)) $mb_area = 1;
 
-$g4[title] = "회원메일발송";
-include_once("./admin.head.php");
+$g4['title'] = '회원메일발송';
+include_once('./admin.head.php');
 ?>
 
 
@@ -55,7 +55,7 @@ include_once("./admin.head.php");
         <colgroup width=80% class='col2 pad2'>
         <tr>
             <td></td>
-            
+
         </tr>
         <tr><td colspan='2' class='line1'></td></tr>
         <tr class='ht'>
@@ -64,7 +64,7 @@ include_once("./admin.head.php");
                 <input type=radio name='mb_id1' value='1' onclick="mb_id1_click(1);" <?=$mb_id1?"checked":"";?>> 전체
                 <input type=radio name='mb_id1' value='0' onclick="mb_id1_click(0);" <?=!$mb_id1?"checked":"";?>> 구간
                 <br>
-                <input type=text class=ed id=mb_id1_from name=mb_id1_from value="<?=$mb_id1_from?>"> 에서 
+                <input type=text class=ed id=mb_id1_from name=mb_id1_from value="<?=$mb_id1_from?>"> 에서
                 <input type=text class=ed id=mb_id1_to name=mb_id1_to value="<?=$mb_id1_to?>"> 까지
 
                 <script type="text/javascript">
@@ -89,7 +89,7 @@ include_once("./admin.head.php");
         <tr class='ht'>
             <td>생일</td>
             <td>
-                <input type=text name='mb_birth_from' size=4 maxlength=4 class=ed value="<?=$mb_birth_from?>"> 부터 
+                <input type=text name='mb_birth_from' size=4 maxlength=4 class=ed value="<?=$mb_birth_from?>"> 부터
                 <input type=text name='mb_birth_to' size=4 maxlength=4 class=ed value="<?=$mb_birth_to?>"> 까지 (예 : 5월5일 인 경우, 0505 와 같이 입력 , 둘다 입력해야함)</td>
         </tr>
         <tr class='ht'>
@@ -149,7 +149,7 @@ include_once("./admin.head.php");
                 <? for ($i=1; $i<=10; $i++) { ?>
                     <option value='<? echo $i ?>'><? echo $i ?>
                 <? } ?>
-                </select> 에서 
+                </select> 에서
                 <select id=mb_level_to name=mb_level_to>
                 <? for ($i=1; $i<=10; $i++) { ?>
                     <option value='<? echo $i ?>'><? echo $i ?>
@@ -165,11 +165,11 @@ include_once("./admin.head.php");
                 <select id=gr_id name=gr_id>
                 <option value=''>전체
                 <?
-                $sql = " select gr_id, gr_subject from $g4[group_table] order by gr_subject ";
+                $sql = " select gr_id, gr_subject from {$g4['group_table']} order by gr_subject ";
                 $result = sql_query($sql);
                 for ($i=0; $row=sql_fetch_array($result); $i++)
                 {
-                    echo "<option value='$row[gr_id]'>$row[gr_subject]";
+                    echo "<option value='{$row['gr_id']}'>{$row['gr_subject']}";
                 }
                 ?>
                 </select>
@@ -188,5 +188,5 @@ include_once("./admin.head.php");
 
 
 <?
-include_once("./admin.tail.php");
+include_once('./admin.tail.php');
 ?>
diff --git a/adm/mail_select_list.php b/adm/mail_select_list.php
index b2b04faf8..da3260735 100644
--- a/adm/mail_select_list.php
+++ b/adm/mail_select_list.php
@@ -1,16 +1,16 @@
 <?
 $sub_menu = "200300";
-include_once("./_common.php");
+include_once('./_common.php');
 
-auth_check($auth[$sub_menu], "r");
+auth_check($auth[$sub_menu], 'r');
 
 $token = get_token();
 
-$html_title = "선택된 회원메일리스트";
+$html_title = '선택된 회원메일리스트';
 
 $ma_last_option = "";
 
-$sql_common = " from $g4[member_table] ";
+$sql_common = " from {$g4['member_table']} ";
 $sql_where = " where (1) ";
 
 // 회원ID ..에서 ..까지
@@ -45,16 +45,16 @@ if ($gr_id)
 {
     $group_member = "";
     $comma = "";
-    $sql2 = " select mb_id from $g4[group_member_table] where gr_id = '$gr_id' order by mb_id ";
+    $sql2 = " select mb_id from {$g4['group_member_table']} where gr_id = '$gr_id' order by mb_id ";
     $result2 = sql_query($sql2);
     for ($k=0; $row2=sql_fetch_array($result2); $k++)
     {
-        $group_member .= "{$comma}'$row2[mb_id]'"; 
+        $group_member .= "{$comma}'{$row2['mb_id']}'";
         $comma = ",";
     }
 
     if (!$group_member)
-        alert("선택하신 게시판 그룹회원이 한명도 없습니다.");
+        alert('선택하신 게시판 그룹회원이 한명도 없습니다.');
 
     $sql_where .= " and mb_id in ($group_member) ";
 }
@@ -64,9 +64,9 @@ $sql_where .= " and mb_leave_date = '' and mb_intercept_date = '' ";
 
 $sql = " select COUNT(*) as cnt $sql_common $sql_where ";
 $row = sql_fetch($sql);
-$cnt = $row[cnt];
+$cnt = $row['cnt'];
 if ($cnt == 0)
-    alert("선택하신 내용으로는 해당되는 회원자료가 없습니다.");
+    alert('선택하신 내용으로는 해당되는 회원자료가 없습니다.');
 
 // 마지막 옵션을 저장합니다.
 $ma_last_option .= "mb_id1=$mb_id1";
@@ -82,10 +82,10 @@ $ma_last_option .= "||mb_level_from=$mb_level_from";
 $ma_last_option .= "||mb_level_to=$mb_level_to";
 $ma_last_option .= "||gr_id=$gr_id";
 
-sql_query(" update $g4[mail_table] set ma_last_option = '$ma_last_option' where ma_id = '$ma_id' ");
+sql_query(" update {$g4['mail_table']} set ma_last_option = '$ma_last_option' where ma_id = '$ma_id' ");
 
 
-include_once("./admin.head.php");
+include_once('./admin.head.php');
 ?>
 
 <table width=500 align=center><tr><td>
@@ -107,11 +107,11 @@ include_once("./admin.head.php");
             $i=0;
             $ma_list = "";
             $cr = "";
-            while ($row=sql_fetch_array($result)) 
+            while ($row=sql_fetch_array($result))
             {
                 $i++;
-                echo "<option>$i . $row[mb_id] / $row[mb_name] / $row[mb_nick] / $row[mb_birth] / $row[mb_email]";
-                $ma_list .= $cr . $row[mb_email] . "||" . $row[mb_id] . "||" . $row[mb_name] . "||" . $row[mb_nick] . "||" . $row[mb_birth] . "||" . $row[mb_datetime];
+                echo "<option>$i . {$row['mb_id']} / {$row['mb_name']} / {$row['mb_nick']} / {$row['mb_birth']} / {$row['mb_email']}";
+                $ma_list .= $cr . $row['mb_email'] . "||" . $row['mb_id'] . "||" . $row['mb_name'] . "||" . $row['mb_nick'] . "||" . $row[mb_birth] . "||" . $row[mb_datetime];
                 $cr = "\n";
             }
         ?>
@@ -128,7 +128,7 @@ include_once("./admin.head.php");
 
 </td></tr></table>
 
-<script type='text/javascript'> 
+<script type='text/javascript'>
 function fmailselectlist_submit(f)
 {
     f.action = "./mail_select_update.php";
@@ -137,5 +137,5 @@ function fmailselectlist_submit(f)
 </script>
 
 <?
-include_once("./admin.tail.php");
+include_once('./admin.tail.php');
 ?>
diff --git a/adm/mail_select_update.php b/adm/mail_select_update.php
index 4466daadc..6b2d9d67d 100644
--- a/adm/mail_select_update.php
+++ b/adm/mail_select_update.php
@@ -1,17 +1,17 @@
 <?
 $sub_menu = "200300";
-include_once("./_common.php");
+include_once('./_common.php');
 
-auth_check($auth[$sub_menu], "w");
+auth_check($auth[$sub_menu], 'w');
 
-$html_title = "회원메일 발송";
+$html_title = '회원메일 발송';
 
 check_demo();
 
 check_token();
 
-include_once("./admin.head.php");
-include_once("$g4[path]/lib/mailer.lib.php");
+include_once('./admin.head.php');
+include_once($g4['path'].'/lib/mailer.lib.php');
 
 $countgap = 10; // 몇건씩 보낼지 설정
 $maxscreen = 500; // 몇건씩 화면에 보여줄건지?
@@ -25,46 +25,46 @@ echo "</span>";
 <span id="cont"></span>
 
 <?
-include_once("./admin.tail.php");
+include_once('./admin.tail.php');
 ?>
 
 <?
 flush();
 ob_flush();
 
-$ma_id = trim($_POST[ma_id]); 
-$select_member_list = addslashes(trim($_POST[ma_list])); 
+$ma_id = trim($_POST['ma_id']);
+$select_member_list = addslashes(trim($_POST['ma_list']));
 
 //print_r2($_POST); EXIT;
 $member_list = explode("\n", $select_member_list);
 
 // 메일내용 가져오기
-$sql = "select ma_subject, ma_content from $g4[mail_table] where ma_id = '$ma_id' ";
+$sql = "select ma_subject, ma_content from {$g4['mail_table']} where ma_id = '$ma_id' ";
 $ma = sql_fetch($sql);
 
-$subject = $ma[ma_subject];
+$subject = $ma['ma_subject'];
 
 $cnt = 0;
-for ($i=0; $i<count($member_list); $i++) 
+for ($i=0; $i<count($member_list); $i++)
 {
     list($email, $mb_id, $name, $nick, $birth, $datetime) = explode("||", trim($member_list[$i]));
 
     $sw = preg_match("/[0-9a-zA-Z_]+(\.[0-9a-zA-Z_]+)*@[0-9a-zA-Z_]+(\.[0-9a-zA-Z_]+)*/", $email);
     // 올바른 메일 주소만
-    if ($sw == true) 
+    if ($sw == true)
     {
         $cnt++;
 
         $mb_md5 = md5($mb_id.$email.$datetime);
 
-        $content = $ma[ma_content];
+        $content = $ma['ma_content'];
         $content = preg_replace("/{이름}/", $name, $content);
         $content = preg_replace("/{별명}/", $nick, $content);
         $content = preg_replace("/{회원아이디}/", $mb_id, $content);
         $content = preg_replace("/{이메일}/", $email, $content);
         $content = preg_replace("/{생일}/", (int)substr($birth,4,2).'월 '.(int)substr($birth,6,2).'일', $content);
 
-        $content = $content . "<hr size=0><p><span style='font-size:9pt; font-familye:굴림'>▶ 더 이상 정보 수신을 원치 않으시면 [<a href='$g4[url]/$g4[bbs]/email_stop.php?mb_id=$mb_id&mb_md5=$mb_md5' target='_blank'>수신거부</a>] 해 주십시오.</span></p>";
+        $content = $content . "<hr size=0><p><span style='font-size:9pt; font-familye:굴림'>▶ 더 이상 정보 수신을 원치 않으시면 [<a href='{$g4['url']}/{$g4['bbs']}/email_stop.php?mb_id={$mb_id}&amp;mb_md5={$mb_md5}' target='_blank'>수신거부</a>] 해 주십시오.</span></p>";
 
         /*
         ob_start();
@@ -74,7 +74,7 @@ for ($i=0; $i<count($member_list); $i++)
         */
 
         //mailer($default[de_subject], $default[de_admin_email], $email, $subject, $content, 1);
-        mailer($config[cf_title], $member[mb_email], $email, $subject, $content, 1);
+        mailer($config['cf_title'], $member['mb_email'], $email, $subject, $content, 1);
 
         echo "<script> document.all.cont.innerHTML += '$cnt. $email ($mb_id : $name)<br>'; </script>\n";
         //echo "+";
@@ -82,7 +82,7 @@ for ($i=0; $i<count($member_list); $i++)
         ob_flush();
         ob_end_flush();
         usleep($sleepsec);
-        if ($cnt % $countgap == 0) 
+        if ($cnt % $countgap == 0)
         {
             echo "<script> document.all.cont.innerHTML += '<br>'; document.body.scrollTop += 1000; </script>\n";
         }
diff --git a/adm/mail_test.php b/adm/mail_test.php
index f61a4c4ae..fd557cacd 100644
--- a/adm/mail_test.php
+++ b/adm/mail_test.php
@@ -1,41 +1,41 @@
 <?
 $sub_menu = "200300";
-include_once("./_common.php");
+include_once('./_common.php');
 
-if (!$config[cf_email_use])
-    alert("환경설정에서 \'메일발송 사용\'에 체크하셔야 메일을 발송할 수 있습니다.");
+if (!$config['cf_email_use'])
+    alert('환경설정에서 \'메일발송 사용\'에 체크하셔야 메일을 발송할 수 있습니다.');
 
-include_once("$g4[path]/lib/mailer.lib.php");
+include_once($g4['path'].'/lib/mailer.lib.php');
 
-auth_check($auth[$sub_menu], "w");
+auth_check($auth[$sub_menu], 'w');
 
 check_demo();
 
-$g4[title] = "회원메일 테스트";
+$g4[title] = '회원메일 테스트';
 
-$name = $member[mb_name];
-$nick = $member[mb_nick];
-$mb_id = $member[mb_id];
-$email = $member[mb_email];
-$birth = $member[mb_birth];
+$name = $member['mb_name'];
+$nick = $member['mb_nick'];
+$mb_id = $member['mb_id'];
+$email = $member['mb_email'];
+$birth = $member['mb_birth'];
 
-$sql = "select ma_subject, ma_content from $g4[mail_table] where ma_id = '$ma_id' ";
+$sql = "select ma_subject, ma_content from {$g4['mail_table']} where ma_id = '$ma_id' ";
 $ma = sql_fetch($sql);
 
-$subject = $ma[ma_subject];
+$subject = $ma['ma_subject'];
 
-$content = $ma[ma_content];
+$content = $ma['ma_content'];
 $content = preg_replace("/{이름}/", $name, $content);
 $content = preg_replace("/{별명}/", $nick, $content);
 $content = preg_replace("/{회원아이디}/", $mb_id, $content);
 $content = preg_replace("/{이메일}/", $email, $content);
 $content = preg_replace("/{생일}/", (int)substr($birth,4,2).'월 '.(int)substr($birth,6,2).'일', $content);
 
-$mb_md5 = md5($member[mb_id].$member[mb_email].$member[mb_datetime]);
+$mb_md5 = md5($member['mb_id'].$member['mb_email'].$member['mb_datetime']);
 
-$content = $content . "<hr size=0><p><span style='font-size:9pt; font-familye:굴림'>▶ 더 이상 정보 수신을 원치 않으시면 [<a href='$g4[url]/$g4[bbs]/email_stop.php?mb_id=$mb_id&mb_md5=$mb_md5' target='_blank'>수신거부</a>] 해 주십시오.</span></p>";
+$content = $content . "<hr size=0><p><span style='font-size:9pt; font-familye:굴림'>▶ 더 이상 정보 수신을 원치 않으시면 [<a href='{$g4['url']}/{$g4['bbs']}/email_stop.php?mb_id={$mb_id}&amp;mb_md5={$mb_md5}' target='_blank'>수신거부</a>] 해 주십시오.</span></p>";
 
-mailer($config[cf_title], $member[mb_email], $member[mb_email], $subject, $content, 1);
+mailer($config['cf_title'], $member['mb_email'], $member['mb_email'], $subject, $content, 1);
 
-alert("$member[mb_nick]($member[mb_email])님께 테스트 메일을 발송하였습니다.\\n\\n확인하여 주십시오.");
+alert("{$member['mb_nick']}({$member['mb_email']})님께 테스트 메일을 발송하였습니다.\\n\\n확인하여 주십시오.");
 ?>
diff --git a/adm/mail_update.php b/adm/mail_update.php
index 1efa03a32..a4ad384bf 100644
--- a/adm/mail_update.php
+++ b/adm/mail_update.php
@@ -1,39 +1,39 @@
 <?
 $sub_menu = "200300";
-include_once("./_common.php");
+include_once('./_common.php');
 
 if ($w == 'u' || $w == 'd')
     check_demo();
 
-auth_check($auth[$sub_menu], "w");
+auth_check($auth[$sub_menu], 'w');
 
 check_token();
 
-if ($w == "") 
+if ($w == '')
 {
-    $sql = " insert $g4[mail_table]
-                set ma_id      = '$_POST[ma_id]',
-                    ma_subject = '$_POST[ma_subject]',
-                    ma_content = '$_POST[ma_content]',
-                    ma_time    = '$g4[time_ymdhis]',
-                    ma_ip      = '$_SERVER[REMOTE_ADDR]' ";
+    $sql = " insert {$g4['mail_table']}
+                set ma_id      = '{$_POST['ma_id']}',
+                    ma_subject = '{$_POST['ma_subject']}',
+                    ma_content = '{$_POST['ma_content']}',
+                    ma_time    = '{$g4['time_ymdhis']}',
+                    ma_ip      = '{$_SERVER['REMOTE_ADDR']}' ";
     sql_query($sql);
-} 
-else if ($w == "u") 
+}
+else if ($w == 'u')
 {
-    $sql = " update $g4[mail_table]
-                set ma_subject = '$_POST[ma_subject]',
-                    ma_content = '$_POST[ma_content]',
-                    ma_time    = '$g4[time_ymdhis]',
-                    ma_ip      = '$_SERVER[REMOTE_ADDR]'
-              where ma_id      = '$_POST[ma_id]' ";
+    $sql = " update {$g4['mail_table']}
+                set ma_subject = '{$_POST['ma_subject']}',
+                    ma_content = '{$_POST['ma_content']}',
+                    ma_time    = '{$g4['time_ymdhis']}',
+                    ma_ip      = '{$_SERVER['REMOTE_ADDR']}'
+              where ma_id      = '{$_POST['ma_id']}' ";
     sql_query($sql);
-} 
-else if ($w == "d") 
+}
+else if ($w == 'd')
 {
-	$sql = " delete from $g4[mail_table] where ma_id = '$_POST[ma_id]' ";
+	$sql = " delete from {$g4['mail_table']} where ma_id = '{$_POST['ma_id']}' ";
     sql_query($sql);
 }
 
-goto_url("./mail_list.php");
+goto_url('./mail_list.php');
 ?>
diff --git a/adm/test.php b/adm/test.php
deleted file mode 100644
index e69de29bb..000000000