AllClass/class_main.php at master · nohhow/AllClass · GitHub

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<?php
    if (isset($_SESSION["userid"])) $userid = $_SESSION["userid"];
    else $userid = "";
?>
<!-- 클래스 메인 시작 -->
<div id="class_main">

    <div>
        <button id = "class_btn" onclick="access1()">CREATE</button>
        <script> // 로그인 안되어있으면 login_form.php가 보여짐

                function access1(){
                    var userid = '<?php echo $userid;?>';

                    if(userid == ""){
                        alert("로그인 후 이용해주세요.");
                        location.href='login_form.php';
                    }
                    else{
                        location.href='class_form.php';
                    }
                }
        </script>
        &nbsp;&nbsp;
        <button id = "class_btn" onclick="access2()">JOIN</button>
        <script> // 로그인 안되어있으면 login_form.php가 보여짐

                    function access2(){
                        var userid = '<?php echo $userid;?>';

                        if(userid == ""){
                            alert("로그인 후 이용해주세요.");
                            location.href='login_form.php';
                        }
                        else{
                            location.href='class_mem_form.php';
                        }
                    }
            </script>
    </div>

    <br>
<!-- 가입된 클래스가 보여질 부분 -->
<?php
    $con = mysqli_connect("localhost", "user1", "12345", "all_class");
    $sql = "select class_code from mem_class where mem_id='$userid'";
    $result = mysqli_query($con, $sql) or die;

    echo '<div class="row">';

    while($list = mysqli_fetch_array($result)) {
        $sql2='select * from classes where class_code="'.$list['class_code'].'"';
        $class_result=mysqli_query($con, $sql2);
        while($class_list = mysqli_fetch_array($class_result)){
            echo '<div class="col-xl-3 col-md-6">
                <div class="card bg-warning text-white mb-4">
                    <div class="card-body">'.$class_list['class_name'].'</div>
                    <div class="card-footer d-flex align-items-center justify-content-between">
                        <a class="small text-white stretched-link" href="class_detail.php?class_name='.$class_list['class_name'].'&class_info='.$class_list['class_info'].'&class_code='.$class_list['class_code'].'">View details</a>
                        <div class="small text-white"><i class="fas fa-angle-right"></i></div>
                    </div>
                </div>
            </div>';
        }
    }
    echo '</div>';
?>

<!-- 클래스 메인 끝 -->
</div>