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problem.php
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<?php
error_reporting(E_ERROR | E_PARSE);
include "connection.php";
function random_str(int $length = 64, string $keyspace = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'):
string
{
if ($length < 1)
{
throw new \RangeException("Length must be a positive integer");
}
$pieces = [];
$max = mb_strlen($keyspace, '8bit') - 1;
for ($i = 0;$i < $length;++$i)
{
$pieces[] = $keyspace[random_int(0, $max) ];
}
return implode('', $pieces);
}
session_set_cookie_params(0);
session_start();
if (!$_SESSION["chk"])
{
$_SESSION["chk"] = random_str();
}
$id = $_GET['no'];
//$ipaddress = explode(':', explode(';', getUserIP()) [0]) [0];
if (!is_numeric($id))
{
header("Location: https://openmath.co.kr");
die('ㅇㅇㅋ');
}
?>
<!DOCTYPE html>
<html>
<title>openmath | <?php echo $id; ?></title>
<meta charset="UTF-8">
<!-- Event snippet for Website traffic conversion page -->
<script>
gtag('event', 'conversion', {'send_to': 'AW-946626398/CRFKCOLnpe4BEN6-scMD'});
</script>
<!-- Global site tag (gtag.js) - Google Ads: 946626398 -->
<script async src="https://www.googletagmanager.com/gtag/js?id=AW-946626398"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'AW-946626398');
</script>
<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id=G-SNX5BGRM39"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'G-SNX5BGRM39');
</script>
<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
<script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Raleway">
<style>
body,h1,h2,h3,h4,h5 {font-family: "Raleway", sans-serif}
</style>
<body class="w3-light-grey">
<!-- w3-content defines a container for fixed size centered content,
and is wrapped around the whole page content, except for the footer in this example -->
<div class="w3-content" style="max-width:1400px">
<!-- Header -->
<header class="w3-container w3-center w3-padding-32">
<h1 onclick="window.location='https://openmath.co.kr/'"><b>openmath</b></h1>
<p>Made by <span class="w3-tag">Pizzaroot</span></p>
</header>
<!-- Grid -->
<div class="w3-row">
<!-- Blog entries -->
<div class="w3-col l8 s12">
<!-- Blog entry -->
<div class="w3-card-4 w3-margin w3-white">
<div class="w3-container">
<?php
function getUserIP()
{
$ipaddr1ess = '';
if (isset($_SERVER['HTTP_CLIENT_IP'])) $ipaddr1ess = $_SERVER['HTTP_CLIENT_IP'];
else if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) $ipaddr1ess = $_SERVER['HTTP_X_FORWARDED_FOR'];
else if (isset($_SERVER['HTTP_X_FORWARDED'])) $ipaddr1ess = $_SERVER['HTTP_X_FORWARDED'];
else if (isset($_SERVER['HTTP_X_CLUSTER_CLIENT_IP'])) $ipaddr1ess = $_SERVER['HTTP_X_CLUSTER_CLIENT_IP'];
else if (isset($_SERVER['HTTP_FORWARDED_FOR'])) $ipaddr1ess = $_SERVER['HTTP_FORWARDED_FOR'];
else if (isset($_SERVER['HTTP_FORWARDED'])) $ipaddr1ess = $_SERVER['HTTP_FORWARDED'];
else if (isset($_SERVER['REMOTE_ADDR'])) $ipaddr1ess = $_SERVER['REMOTE_ADDR'];
else $ipaddr1ess = 'UNKNOWN';
return $ipaddr1ess;
}
$sql = "SELECT * FROM problems WHERE id=$id";
$result = mysqli_query($conn, $sql) or die('?ㅋㅋ');
if (mysqli_num_rows($result) == 0)
{
die('ㅋㅋ루삥빵');
}
$chkvar = $_SESSION["chk"];
$sql4 = "SELECT * FROM users WHERE chk='$chkvar'";
$result4 = mysqli_query($conn, $sql4) or die('ㄹㅇㅋㅋ');
if (mysqli_num_rows($result4) > 0)
{
while ($row = mysqli_fetch_assoc($result4))
{
$session_nid = $row['nid'];
$session_nickname = $row['nickname'];
$session_email = $row['email'];
$session_1 = $row['gold'];
$session_2 = $row['silver'];
$session_3 = $row['bronze'];
}
}
else
{
}
while ($row = mysqli_fetch_assoc($result))
{
if ($row['time'] > time())
{
$lefttime = $row['time'] - time();
die("<div class=\"w3-container\" style=\"font-size:30px\">너무 빨리오셨네 ㅋㅋ<br>문제는 $lefttime 초 후에 공개됩니다</div>");
}
else
{
?>
<img src="<?php echo $row['url'] ?>" width="100%"><br><hr></div>
<div class="w3-container">
<div class="w3-row">
<?php
$firstname = $row['first'];
$secondname = $row['second'];
$thirdname = $row['third'];
$answer = $row['answer'];
$correctpercentage = round(($row['correctcount'] / ($row['allcount'] + 0.00000000001)) * 100);
$correctcount = $row['correctcount'] + 1;
$allcount = $row['allcount'] + 1;
$logstr = $row['log'];
$catestr = $row['category'];
$cemail = $row['email'];
$featuredval = $row['featured'];
$communitystr = $row['community'];
$codepath = $row['code'];
$codesave = $row['save'];
if (strlen($row['first']) > 0)
{
if (strlen($row['second']) > 0)
{
if (strlen($row['third']) > 0)
{
$inrankstring = "no";
}
else
{
$inrankstring = 'third';
}
}
else
{
$inrankstring = 'second';
}
}
else
{
$inrankstring = 'first';
}
}
}
$alreadywrote = false;
if (strpos($communitystr.' ', ':<]|[>:'.$session_nid) !== false) {
$alreadywrote = true;
}
function startsWithNumber($str) {
return preg_match('/^\d/', $str) === 1;
}
if (isset($_POST['comment'])) {
// 여기 htmlentities 잘봐노셈 ㅋㅋ ㄹㅇ
if (strlen($_POST['comment']) <= 1000 /* && strpos($communitystr.' ', htmlentities($_POST['comment'])) === false*/&& strpos(htmlentities($_POST['comment']).' ', ':<]|[>:') === false && strpos(htmlentities($_POST['comment']).' ', ']~!-|-!~[') === false)
{
$extrastr = "";
$extrastr2 = "";
if (startsWithNumber(trim($_POST['comment']))) {
$extrastr = " ";
}
if ($_SESSION["chk"])
{
$chkvar = $_SESSION["chk"];
$sql49 = "SELECT * FROM users WHERE chk='$chkvar'";
$result49 = mysqli_query($conn, $sql49) or die('ㄹㅇㅋㅋ123123');
if (mysqli_num_rows($result49) > 0)
{
while ($row = mysqli_fetch_assoc($result49))
{
$session_nickname = $row['nickname'];
$session_email = $row['email'];
$session_nid = $row['nid'];
$setvarkthx = 958730;
if (startsWithNumber($session_nickname)) {
$extrastr2 = " ";
}
}
}
else
{
header("Location: https://openmath.co.kr/problem.php?no=$id");
die('ㅇㅇㅋ');
}
}
if ($setvarkthx == 958730 && strpos($logstr.' ', $session_email) !== false) {
if (strpos($communitystr.' ', ':<]|[>:'.$session_nid) !== false) {
if (strlen(trim($_POST['comment'])) == 0) {
$explodebeforestrarr = explode(':<]|[>:'.$session_nid, $communitystr);
$parts = explode(']~!-|-!~[', $explodebeforestrarr[0]);
$last = array_pop($parts);
$newcomstr = mysqli_real_escape_string($conn, implode(']~!-|-!~[', $parts).$explodebeforestrarr[1]);
$sql49 = "UPDATE problems SET community='$newcomstr' WHERE id=$id";
$result49 = mysqli_query($conn, $sql49) or die('ㄹㅇㅋㅋ');
$alreadywrote = false;
} else {
$explodebeforestrarr = explode(':<]|[>:'.$session_nid, $communitystr);
$parts = explode(']~!-|-!~[', $explodebeforestrarr[0]);
$last = array_pop($parts);
$newcomstr = mysqli_real_escape_string($conn, implode(']~!-|-!~[', $parts).$explodebeforestrarr[1].']~!-|-!~['.$extrastr2.$session_nickname.":<]|[>:".time().":<]|[>:".$extrastr.htmlentities(trim($_POST['comment'])).":<]|[>:".$session_nid);
$sql49 = "UPDATE problems SET community='$newcomstr' WHERE id=$id";
$result49 = mysqli_query($conn, $sql49) or die('ㄹㅇㅋㅋ');
$alreadywrote = true;
}
} else if (strlen(trim($_POST['comment'])) > 0) {
$newcomstr = mysqli_real_escape_string($conn, $communitystr.']~!-|-!~['.$extrastr2.$session_nickname.":<]|[>:".time().":<]|[>:".$extrastr.htmlentities(trim($_POST['comment'])).":<]|[>:".$session_nid);
$sql49 = "UPDATE problems SET community='$newcomstr' WHERE id=$id";
$result49 = mysqli_query($conn, $sql49) or die('ㄹㅇㅋㅋ');
$alreadywrote = true;
}
}
}
}
if (isset($_GET['answer']))
{
if ($_GET['answer'] == "")
{
echo '정답을 입력한 뒤 로그인해주세요.<br>';
}
else
{
if (isset($_GET["code"]) && isset($_GET["state"]))
{
$client_id = "4Eu7GCawIZh9QIugb1Rf";
$code = $_GET["code"];
$state = $_GET["state"];
$redirectURI = urlencode("https://openmath.co.kr/problem.php?no=$id"); // 현재 Callback Url 입력
$url = "https://nid.naver.com/oauth2.0/token?grant_type=authorization_code&client_id=" . $client_id . "&client_secret=" . $client_secret . "&redirect_uri=" . $redirectURI . "&code=" . $code . "&state=" . $state;
$is_post = false;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, $is_post);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$headers = array();
$response = curl_exec($ch);
$status_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ($status_code == 200)
{
$response_arr = json_decode($response, true);
$token = $response_arr['access_token']; // Access Token
$header = "Bearer " . $token; // Bearer 문자열 다음에 공백을 추가해야 합니다.
// 네이버 회원 프로필 조회 요청 URL
$user_profile_url = "https://openapi.naver.com/v1/nid/me";
$is_post = false;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $user_profile_url);
curl_setopt($ch, CURLOPT_POST, $is_post);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$headers = array();
$headers[] = "Authorization: " . $header;
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$user_profile = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
// 네이버 회원 프로필 조회 요청을 성공한 경우
if ($status == 200)
{
$user_profile_arr = json_decode($user_profile, true);
$naver_user_id = $user_profile_arr['response']['id']; // 네이버 계정 고유 ID
$naver_user_nickname = $user_profile_arr['response']['nickname']; // 네이버 계정 프로필 이름
$naver_user_email = $user_profile_arr['response']['email']; // 네이버 계정 프로필 E-mail
$session_email = $naver_user_email;
$session_nickname = $naver_user_nickname;
if ($naver_user_id && $naver_user_nickname && $naver_user_email)
{
$setvarkthx = 12230;
if ($_SESSION["chk"])
{
$chkvar = $_SESSION["chk"];
$sql = "SELECT * FROM users WHERE chk='$chkvar'";
$result = mysqli_query($conn, $sql) or die('ㄹㅇㅋㅋ');
if (mysqli_num_rows($result) == 0)
{
$sql2 = "SELECT * FROM users WHERE nid='$naver_user_id'";
$result = mysqli_query($conn, $sql2) or die('ㄹㅇㅋㅋ');
if (mysqli_num_rows($result) == 0)
{
$sql3 = "INSERT INTO users (nid, nickname, email, chk) VALUES ('$naver_user_id', '$naver_user_nickname', '$naver_user_email', '$chkvar')";
$result3 = mysqli_query($conn, $sql3) or die('ㄹㅇㅋㅋzz');
}
else
{
$sql3 = "UPDATE users SET chk='$chkvar' WHERE nid='$naver_user_id'";
$result3 = mysqli_query($conn, $sql3) or die('ㄹㅇㅋㅋzz');
}
}
}
}
else
{
// Naver 유저의 고유 ID가 전달되지 않은 경우 종료
header("Location: https://openmath.co.kr");
die('ㅇㅇㅋ');
}
}
else
{
// 네이버 회원 프로필 조회 요청을 실패한 경우
}
}
else
{
die('ㅋㅋ루삥뿅');
}
if ($naver_user_nickname == "")
{
$naver_user_nickname = " ";
}
}
else if ($_SESSION["chk"])
{
$chkvar = $_SESSION["chk"];
$sql4 = "SELECT * FROM users WHERE chk='$chkvar'";
$result4 = mysqli_query($conn, $sql4) or die('ㄹㅇㅋㅋ');
if (mysqli_num_rows($result4) > 0)
{
while ($row = mysqli_fetch_assoc($result4))
{
$naver_user_nickname = $row['nickname'];
$naver_user_email = $row['email'];
$naver_user_id = $row['nid'];
$session_nickname = $naver_user_nickname;
$setvarkthx = 12230;
}
}
else
{
header("Location: https://openmath.co.kr/problem.php?no=$id");
die('ㅇㅇㅋ');
}
}
if ($codepath == "") {
if ($setvarkthx == 12230 && strpos($logstr.' ', $naver_user_email) !== false && strpos($catestr.' ', "컴퓨터") === false)
{
echo "이미 참여하였습니다.<br>";
if ($thirdname != "")
{
if (intval($_GET['answer']) == $answer)
{
echo "하지만 정답입니다.<br>";
}
else
{
echo "게다가 오답입니다.<br>";
}
}
if ($_GET['answer'] == "삭제" && ($naver_user_email == $cemail || $naver_user_email == "[email protected]"))
{
$sql9 = "DELETE FROM problems WHERE id=$id";
$result = mysqli_query($conn, $sql9) or die('?ㅋㅋ루');
header("Location: https://openmath.co.kr");
}
else if ($_GET['answer'] == "고퀄" && ($naver_user_email == "[email protected]" || (in_array($session_email, $moderatoremails) && !in_array($cemail, $moderatoremails))))
{
$sql9 = "UPDATE problems SET featured=1 WHERE id=$id";
$result = mysqli_query($conn, $sql9) or die('?ㅋㅋ루');
echo "featured=1<br>";
}
else if ($_GET['answer'] == "고퀄 취소" && ($naver_user_email == "[email protected]" || (in_array($session_email, $moderatoremails) && !in_array($cemail, $moderatoremails))))
{
$sql9 = "UPDATE problems SET featured=0 WHERE id=$id";
$result = mysqli_query($conn, $sql9) or die('?ㅋㅋ루');
echo "featured=0<br>";
}
}
else if ($setvarkthx == 12230)
{
if (intval($_GET['answer']) == $answer)
{
if (strpos($logstr, $naver_user_email) !== false)
{
$allcount -= 1;
}
if (strpos($logstr, ";" . $naver_user_email) !== false)
{
$correctcount -= 1;
$inrankstring = "no";
}
echo "정답입니다.<br>";
if ($inrankstring == "no")
{
if (strpos($logstr, ";" . $naver_user_email) === false)
{
$logstr .= ";" . $naver_user_email;
}
$sql9 = "UPDATE problems SET correctcount=$correctcount, allcount=$allcount, log='$logstr' WHERE id=$id";
$result = mysqli_query($conn, $sql9) or die('?ㅋㅋ루');
}
else
{
$logstr .= ";" . $naver_user_email;
$sql9 = "UPDATE problems SET $inrankstring='$session_nickname"."~|~".$naver_user_id."', correctcount=$correctcount, allcount=$allcount, log='$logstr' WHERE id=$id";
$result = mysqli_query($conn, $sql9) or die('?ㅋㅋ루');
}
if (strpos($logstr, ";" . $naver_user_email) === false)
{
echo substr_count($logstr, ";") . "등입니다.<br>";
}
}
else if ($_GET['answer'] == "삭제" && ($naver_user_email == $cemail || $naver_user_email == "[email protected]"))
{
$sql9 = "DELETE FROM problems WHERE id=$id";
$result = mysqli_query($conn, $sql9) or die('?ㅋㅋ루');
header("Location: https://openmath.co.kr");
}
else if ($_GET['answer'] == "고퀄" && $naver_user_email == "[email protected]")
{
$sql9 = "UPDATE problems SET featured=1 WHERE id=$id";
$result = mysqli_query($conn, $sql9) or die('?ㅋㅋ루');
echo "featured=1<br>";
}
else if ($_GET['answer'] == "고퀄 취소" && $naver_user_email == "[email protected]")
{
$sql9 = "UPDATE problems SET featured=0 WHERE id=$id";
$result = mysqli_query($conn, $sql9) or die('?ㅋㅋ루');
echo "featured=0<br>";
}
else
{
if (strpos($logstr, $naver_user_email) !== false)
{
$allcount -= 1;
}
$logstr .= ":" . $naver_user_email;
$correctcount -= 1;
$sql9 = "UPDATE problems SET correctcount=$correctcount, allcount=$allcount, log='$logstr' WHERE id=$id";
$result = mysqli_query($conn, $sql9) or die('?ㅋㅋ루');
echo "오답입니다. 다시 풀어보세요.<br>";
}
}
} else if ($setvarkthx == 12230) {
$sql49 = "SELECT * FROM users WHERE nid=$naver_user_id";
$result49 = mysqli_query($conn, $sql49) or die('ㄹㅇㅋㅋ');
while ($row = mysqli_fetch_assoc($result49))
{
$lastjudged=$row['lastjudge'];
}
if (time()-$lastjudged < 60) {
echo (60-time()+$lastjudged)."초 후에 다시 시도하세요.<br>";
} else {
include_once "api.php";
$execresult = executeCode($codepath, $_GET['answer'], $featuredval);
if ($execresult["statusCode"]==200) {
$execscore = trim($execresult["output"]);
if (intval($execscore) > 0 && strpos($codesave, "|".$naver_user_id.",".$execscore) === false) {
$codesave .= "|".$naver_user_id.",".$execscore;
$sql9 = "UPDATE problems SET save='$codesave' WHERE id=$id";
$result = mysqli_query($conn, $sql9) or die('?ㅋㅋ루e');
}
if (intval($execscore) > 0) {
echo $execscore."점<br>";
} else if (is_numeric($execscore)) {
echo "0점<br>";
} else {
include_once "error.php";
}
} else {
}
$sql10 = "UPDATE users SET lastjudge=".time()." WHERE nid=$naver_user_id";
$result = mysqli_query($conn, $sql10) or die('?ㅋㅋe3루');
include_once "cronjob2.php";
}
}
}
}
?>
<?php
$client_id = "4Eu7GCawIZh9QIugb1Rf";
$redirectURI = urlencode("https://openmath.co.kr/problem.php?no=$id&answer=ANSWER");
$state = "RAMDOM_STATE";
$apiURL = "https://nid.naver.com/oauth2.0/authorize?response_type=code&client_id=" . $client_id . "&redirect_uri=" . $redirectURI . "&state=" . $state;
?>
<?php
$chkvar = $_SESSION["chk"];
///////////////////
////////////////////
$sql = "SELECT * FROM problems WHERE id=$id";
$result = mysqli_query($conn, $sql) or die('?ㅋㅋ');
while ($row = mysqli_fetch_assoc($result))
{
$firstname = $row['first'];
$secondname = $row['second'];
$thirdname = $row['third'];
$correctpercentage = round(($row['correctcount'] / ($row['allcount'] + 0.00000000001)) * 100);
$featuredval = $row['featured'];
$communitystr = $row['community'];
}
/////////
if (strpos($logstr, $session_email) === false || (strpos($catestr, "컴퓨터") !== false && strpos($logstr, ';' . $session_email) === false))
{
$sql4 = "SELECT * FROM users WHERE chk='$chkvar'";
$result4 = mysqli_query($conn, $sql4) or die('ㄹㅇㅋㅋ');
if (mysqli_num_rows($result4) > 0)
{
?><span style="color:red">주의: 1~3등은 네이버 닉네임이 공개됩니다.</span>
<input class="w3-input" id="answer" type="text" placeholder="정답 입력">
<div class="w3-col m12 s12">
<p><button class="w3-button" onclick="window.location='https://openmath.co.kr/problem.php?no=<?php echo $id ?>&answer=ANSWER'.replace('ANSWER', document.getElementById('answer').value)">제출</button><?php
}
else
{
?><span style="color:red">주의: 1~3등은 네이버 닉네임이 공개됩니다.</span>
<input class="w3-input" id="answer" type="text" placeholder="정답 입력">
<div class="w3-col m12 s12">
<p><img height="38px" onclick="window.location='<?php echo $apiURL ?>'.replace('ANSWER', document.getElementById('answer').value)" src="https://openmath.co.kr/naver.png"/><?php
}
?><span class="w3-right"><?php
if ($cemail == $session_email) {
echo " <span class=\"w3-tag w3-red\" ondblclick=\"window.location='https://openmath.co.kr/problem.php?no=$id&answer=삭제'\">문제 삭제</span>";
}
}
else
{
?><div class="w3-col m12 s12">
<p><?php
if (strpos($logstr, ';' . $session_email) !== false)
{
echo "<span class=\"w3-tag w3-green\">정답 ".$answer."</span>";
$communitytab = true;
}
else
{
if ($thirdname != "" || $session_email == "[email protected]" || $session_email == $cemail) {
$answershown = $answer;
} else {
$answershown = "비공개";
}
echo "<span class=\"w3-tag w3-red\">오답</span> <span class=\"w3-tag w3-blue\">정답 ".$answershown."</span>";
$communitytab = true;
}
?><span class="w3-right"><?php
if ($cemail == $session_email) {
echo " <span class=\"w3-tag w3-red\" ondblclick=\"window.location='https://openmath.co.kr/problem.php?no=$id&answer=삭제'\">문제 삭제</span>";
}
if ($session_email == "[email protected]" || (in_array($session_email, $moderatoremails) && !in_array($cemail, $moderatoremails))) {
if ($featuredval != 1) {
echo " <span class=\"w3-tag w3-pale-yellow\" ondblclick=\"window.location='https://openmath.co.kr/problem.php?no=$id&answer=고퀄'\">고퀄</span>";
} else {
echo " <span class=\"w3-tag w3-white\" ondblclick=\"window.location='https://openmath.co.kr/problem.php?no=$id&answer=고퀄%20취소'\">고퀄 취소</span>";
}
}
}
?>
<span class="w3-tag">정답률 <?php echo $correctpercentage ?>%</span></span></p>
</div>
</div>
</div>
</div>
<hr>
<?php
if ($communitytab) {
?>
<form action="https://openmath.co.kr/problem.php?no=<?php echo $id; ?>" method="POST" class="w3-container w3-card-4 w3-light-grey w3-text-blue w3-margin">
<h2 class="w3-center">토론</h2>
<div class="w3-row w3-section">
<div class="w3-rest">
<textarea class="w3-input w3-border" name="comment" type="text" placeholder="<?php
if ($alreadywrote) {
echo "수정할 댓글을 입력하세요. 기존의 댓글을 삭제하려면 빈칸으로 제출하세요.";
} else {
echo "풀이 또는 문제 의견을 입력하세요. 댓글은 한 문제에 한개씩만 달 수 있고, 수정 또는 삭제할 수 있습니다.";
}
?>
"></textarea>
</div>
</div>
<button class="w3-button w3-block w3-section w3-blue w3-ripple w3-padding"><?php
if ($alreadywrote) {
echo "수정 또는 삭제";
} else {
echo "글쓰기";
}
?></button>
</form>
<?php
$communityentries = explode("]~!-|-!~[", $communitystr);
foreach ($communityentries as $centry) {
if ($centry != "") {
$centryprops = explode(":<]|[>:", $centry);
// 0: author, 1: unixtimestamp, 2: contents, 3: nid
?>
<div class="w3-card-4 w3-margin w3-white">
<div class="w3-container">
<h3><b onclick="profile(<?php echo $centryprops[3]; ?>)"><?php echo $centryprops[0]; ?></b></h3> <?php echo date("Y/m/d H:i", $centryprops[1]); ?>
</div>
<div class="w3-container">
<div class="w3-row">
<div class="w3-col">
<p><?php echo $centryprops[2]; ?></p>
</div>
</div>
</div>
</div>
<?php
}
}
}
?>
<!-- END BLOG ENTRIES -->
</div>
<!-- Introduction menu -->
<div class="w3-col l4">
<!-- About Card -->
<div class="w3-card w3-margin w3-margin-top">
<div class="w3-container w3-white">
<h4><b>openmath</b></h4>
<p>주로 수학 자작문제를 업로드하고 자신의 풀이 또는 의견을 공유할 수 있는 사이트입니다. 혹시 버그나 개선할점이 있으면 밑에 있는 오픈채팅방 링크로 들어와서 알려주세요!</p>
</div>
</div><hr>
<!-- Posts -->
<div class="w3-card w3-margin">
<div class="w3-container w3-padding">
<h4>랭킹</h4>
</div>
<ul class="w3-ul w3-hoverable w3-white">
<li class="w3-padding-16">
<span class="w3-large">1등</span><br>
<span onclick="profile(<?php echo explode("~|~", $firstname)[1] ?>)"><?php echo explode("~|~", $firstname)[0] ?></span>
</li>
<li class="w3-padding-16">
<span class="w3-large">2등</span><br>
<span onclick="profile(<?php echo explode("~|~", $secondname)[1] ?>)"><?php echo explode("~|~", $secondname)[0] ?></span>
</li>
<li class="w3-padding-16">
<span class="w3-large">3등</span><br>
<span onclick="profile(<?php echo explode("~|~", $thirdname)[1] ?>)"><?php echo explode("~|~", $thirdname)[0] ?></span>
</li>
</ul>
</div>
<hr>
<div class="w3-card w3-margin">
<div class="w3-container w3-padding">
<h4>광고</h4>
</div>
<div class="w3-container w3-white">
<ins class="kakao_ad_area" style="display:none;"
data-ad-unit = "DAN-TF1vAvaNAXdhDdQt"
data-ad-width = "300"
data-ad-height = "250"></ins>
<script type="text/javascript" src="//t1.daumcdn.net/kas/static/ba.min.js" async></script>
</div>
</div>
<hr>
<!-- END Introduction Menu -->
</div>
<!-- END GRID -->
</div><br>
<!-- END w3-content -->
</div>
<!-- Footer -->
<footer class="w3-container w3-dark-grey w3-padding-32 w3-margin-top">
<p>Powered by <a href="https://www.w3schools.com/w3css/default.asp" target="_blank">w3.css</a><br>Made by Pizzaroot</p>
</footer>
<?php include "modal.php"; ?>
<script>
function httpGetAsync(theUrl, callback)
{
var xmlHttp = new XMLHttpRequest();
xmlHttp.onreadystatechange = function() {
if (xmlHttp.readyState == 4 && xmlHttp.status == 200)
callback(xmlHttp.responseText);
}
xmlHttp.open("GET", theUrl, true); // true for asynchronous
xmlHttp.send(null);
}
<?php include "modalscript.php"; ?>
</script>
</body>
</html>