<?php

include 'db_connect.php';
include 'iconv_encodeing.php';
include 'user_name_converter.php';
$room_number = iconv_encodeing($_GET["room_number"]);
$user_name = iconv_encodeing($_GET["user_name"]);
$user_id = user_name_to_user_id($user_name);
mysql_query("delete from participated_room where room_number = {$room_number} and participated_user_id = {$user_id}") or die("failed you can't go out");
echo "Succeed";
<?php

include 'db_connect.php';
include 'iconv_encodeing.php';
include 'user_name_converter.php';
$room_number = iconv_encodeing($_GET["room_number"]);
$friend_name = iconv_encodeing($_GET["friend_name"]);
$friend_id = user_name_to_user_id($friend_name);
mysql_query("insert into participated_room(room_number,participated_user_id) values ('{$room_number}','{$friend_id}')") or die("failed");
echo "Succeed";
<?php

echo "<?xml version = '1.0' encoding = 'euc-kr'?>";
include 'db_connect.php';
include 'user_name_converter.php';
include 'iconv_encodeing.php';
$user_name = iconv_encodeing($_GET['user_name']);
$user_id = user_name_to_user_id($user_name);
$query = "select user_friend_name from user_friend where user_id= '{$user_id}'";
$row = mysql_query($query);
echo "<Friend>";
while ($result = mysql_fetch_array($row)) {
    echo "<user_friend>{$result['0']}</user_friend>";
}
echo "</Friend>";
<?php

include 'supervisor.php';
include 'iconv_encodeing.php';
include 'user_name_converter.php';
include 'db_connect.php';
$chat = iconv_encodeing(urldecode($_GET["chat"]));
$user_name = iconv_encodeing(urldecode($_GET["user_name"]));
$room_number = iconv_encodeing($_GET["room_number"]);
$user_id = user_name_to_user_id($user_name);
$query = "insert into chat(room_number,chat,chatted_user_id,chatdate) values ('{$room_number}','{$chat}','{$user_id}',now())";
mysql_query("set names euckr");
$result = mysql_query($query) or die("failed");
echo "Succeed";
?>

<?php

include 'db_connect.php';
include 'iconv_encodeing.php';
$user_name = iconv_encodeing(urldecode($_GET["user_name"]));
mysql_query("set names euckr");
$query1 = "select user_name from user where user_name = '{$user_name}' ";
$rs1 = mysql_query($query1);
$result = mysql_fetch_array($rs1);
if (!$result[0]) {
    echo "Succeed!";
    $query = "insert into user(user_name) values ('{$user_name}')";
    mysql_query($query);
} else {
    echo "this user_name is already exist";
}