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javascript - 错误的页面启动方式和未定义的变量

问题描述

所以我得到了这个

注意：未定义变量：date_clicked

我知道它来自哪里，但我不知道如何解决它。而且，我试图让日历从 url 中的当天开始。不用我点击那天。对我的问题有帮助吗？

我的数据库

  CREATE TABLE `events` (
  `id` int(11) NOT NULL,
  `type` int(2) NOT NULL DEFAULT '0',
  `name` varchar(255) DEFAULT NULL,
  `date` date DEFAULT NULL,
  `created` datetime DEFAULT NULL
)

CREATE TABLE `users` (
                  `id` int(11) NOT NULL AUTO_INCREMENT,
                  `username` varchar(255) DEFAULT NULL,
                  `password` varchar(255) DEFAULT NULL,
                  PRIMARY KEY (`id`)
                ) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;

日历.php

     <?php
session_start();
include "connection.php";
if(!isset($_SESSION["username"]))
{
    ?>
    <script type="text/javascript">
        window.location="calendar1.php?";
    </script>
    <?php
}
?>

<style type="text/css">
<?php include 'style.css'; ?>
</style>

<?php
$month_date = date('m');
$year_date = date('Y');
date_default_timezone_set("Europe/Bucharest");

if(isset($_GET['month'])) {
    $month = $_GET['month'];
} else {
    $month = $month_date;
}

if(isset($_GET['year'])) {
    $year = $_GET['year'];
} else {
    $year = $year_date;
}

if(isset($_GET['day'])) {
    $day_clicked = $_GET['day'];
    $date_clicked = $year . '-' . $month . '-' . $day_clicked;
}

if(isset($_POST['submit'])){
    $created = date('Y-m-d H:i:s');
    if($_FILES["f1"]["error"] == 0) {
        $tm=md5(time());
        $fnm=$_FILES["f1"]["name"];
        $destination="./images/".$tm.$fnm;
        $destination1="images/".$tm.$fnm;
        move_uploaded_file($_FILES["f1"]["tmp_name"],$destination);

        mysqli_query($link,"insert into events (`type`, `name`, `date`, `created`, `image`)
                                   values ('$_POST[radio]','$_POST[name]','$date_clicked','$created','$destination1')");
    } else {
        mysqli_query($link,"insert into events  (`type`, `name`, `date`, `created`)
                                   values ('$_POST[radio]','$_POST[name]','$date_clicked','$created')");
    }

    header('Location: ' . $_SERVER['REQUEST_URI']);
    exit;
}

$today = 0;
if($month == $month_date && $year == $year_date) {
    $today = date('d');
}

$data = mktime(0,0,0,$month,1,$year);
$last_day = date("t",$data);
$this_month = getdate ($data);
$start_day = $this_month['wday']-1;

if($start_day < 0 ) {
    $start_day = 6;
}

$prev = $next = 'calendar1.php?month=';
$prev .= ($month == 1 ? '12&amp;year='.($year-1) : ($month-1).'&amp;year='.$year);
$next .= ($month == 12 ? '1&amp;year='.($year+1) : ($month+1).'&amp;year='.$year);

echo '
    <div class="calendar">
        <div class="direction">

            <a href="',$prev,'" class="previous">Previous</a>
            <a href="',$next,'" class="next">Next</a>

        </div>

  <table>
        <caption>',date("F",$data),' ',$year,'</caption>
        <thead>
            <tr>
                <th scope="col">Mo</th>
                <th scope="col">Tu</th>
                <th scope="col">We</th>
                <th scope="col">Th</th>
                <th scope="col">Fr</th>
                <th scope="col">Sa</th>
                <th scope="col">Su</th>
            </tr>
        </thead>
        <tbody>
            <tr>';

$i=0;
while ($i < $start_day) {
    echo '<td></td>';
    $i++;
}

$month_events = mysqli_query($link,"select date from events where date LIKE '".$year . '-' . $month."%' GROUP BY date");

while($month_event = mysqli_fetch_assoc($month_events)) {
    $has_event[$month_event['date']] = true;
}

$day = 1;
while($day <= $last_day) {
    if (($i % 7) == 0) {
        echo '<tr>';
    }
    ?>

<?php if(strlen($day) == 1) {
    $comp_date = $year . '-' . $month . '-0' . $day;
} else {
    $comp_date = $year . '-' . $month . '-' . $day;
}
?>

    <td <?php   if($day == $today){
                    echo "class='today'";
                } elseif(isset($has_event[$comp_date])) {
                    echo "class='evenbox'";
                }
        ?>>

       <?php echo "<a  class='onclick' href='?month=".$month."&day=".$day."&year=".$year."'>".$day."</a>"; ?>
    </td>

    <?php
    if ((++$i % 7) == 0) { ?>
        </tr>
        <?php
    }
    $day++;

}

if (($i % 7) > 0) {
    while ($i++ % 7 > 0) { ?>
        <td></td>
        <?php
    } ?>
    </tr>
    <?php
}
?>


</tbody>
</table>
</div>

<div id="details">
    <?php
    $res=mysqli_query($link,"select * from events where date='$date_clicked'");
    while($row=mysqli_fetch_array($res))
    { ?>
        Today: <?php echo $row["name"]; ?><br />
        Event type: <?php echo $row["type"]; ?><br />
        Added: <?php echo date('d-m-Y H:i', strtotime($row["created"])); ?><br />
        <?php if($row["image"] != '') {
            echo '<img src="'.$row["image"].'" style="max-width:100px;height:auto;" />';
        } ?>
        <hr />
        <?php
    }
    ?>
</div>

    <br/>


    <button id="button" onclick="javascript:showhide();" >Add events </button>
    <div id="events" class="events">

    <form id="form1" name="form1" action="" method="post" enctype="multipart/form-data" >
        <table>
            <tr>
       <td> <label for="name">Insert data</label>
        <br/>
            <textarea name="name" id="name" cols="30" rows="3" placeholder="Add details about event here" required=""></textarea>
           <br class="clear" />
       </td>
            </tr>

       <tr>
           <td>
        <label for="type">Type</label>
        <input type="radio" name="radio" value="0" id="type" required="" />0
        <input type="radio" name="radio" value="1" id="type" required="" />1
        <input type="radio" name="radio" value="2" id="type" required=""/>2
        <br class="clear" />
            </td>
       </tr>

            <tr>
                <td><label for="type">Insert image</label>
                    <input type="file" name="f1" /></td>

            </tr>


            <tr>
             <td>
                 <input type="submit" name="submit"  class="click" value="Submit">

              </td>
         </tr>

        </table>
    </form>
    </div>


</div>

<script type="text/javascript">
    function showhide()
    {
        var div = document.getElementById("events");
        if (div.style.display === "block") {
            div.style.display = "none";
        }
        else {
            div.style.display = "block";
        }
    }
</script>

登录.php

 <?php
    session_start();
    include "connection.php";
    ?>

    <style type="text/css">
        <?php include 'loginform.css'; ?>
    </style>

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">

    </head>


    <body class="login">
    <div class="login_wrapper">

        <section class="login_content">
            <form name="form1" action="" method="post">
                <h1>Login</h1>

                <div>
                    <input type="text" name="username" class="form-control" placeholder="Username" required=""/>
                </div>
                <div>
                    <input type="password" name="password" class="form-control" placeholder="Password" required=""/>
                </div>
                <div>

                    <input class="btn btn-default submit" type="submit" name="submit1" value="Login">

                </div>


                <div class="clearfix"></div>
                <br/>


    </div>
    </form>
    </section>



    <?php
    if(isset($_POST["submit1"]))
    {
        $reg = mysqli_query($link, "select * from users where username='$_POST[username]'");
        if($count = mysqli_num_rows($reg)){
        $security_hash = '&*^HJVkhjJYHGF7896(*jkbad78JHB#)R(JV';
        $password = hash('md5', $_POST['password'].$security_hash);
            ?>
        <?php
        $_SESSION["username"]=$_POST["username"];

        ?>

        <script type="text/javascript">
            window.location="calendar1.php?";
        </script>

        <?php

        }
        else
        {
      ?>
        <div class="alert alert-danger col-lg-6 col-lg-push-3">
            <strong style="color:white">Incorect</strong> username or password
        </div>
            <?php

        }
    }

    ?>


    </body>
    </html>

连接.h

    <?php
$link=mysqli_connect("localhost","root","");
mysqli_select_db($link,"calendar");

if ($link->connect_error) {
    die("Connection failed: " . $link->connect_error);
}
?>

登录表单.css

.login {
    background: white;
}
.login_wrapper {
    right: 0px;
    margin: 0px auto;
    margin-top: 5%;
    max-width: 350px;
    position: relative
}

.clearfix:after,
form:after {
    content: ".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden
}

.login_content {
    margin: 0 auto;
    padding: 25px 0 0;
    position: relative;
    text-align: center;
    text-shadow: 0 1px 0 #fff;
    min-width: 280px
}

.login_content form {
    margin: 20px 0;
    position: relative
}

.form-control{
    margin-right:5px;
    margin-bottom:10px
}

.login_content .btn-default:hover {
    text-decoration: none
}

.login_content a:hover {
    text-decoration: underline
}

.login_content h1 {
    font: normal 25px Helvetica, Arial, sans-serif;
    line-height: 20px;
    margin: 10px 0 30px
}

.login_content h1:after {
    background: #7e7e7e;
    background: linear-gradient(left, #7e7e7e 0%, #fff 100%);
    right: 0
}
.login_content h1:before {
    background: #7e7e7e;
    background: linear-gradient(right, #7e7e7e 0%, #fff 100%);
    left: 0
}

.login_content h1:before,
.login_content h1:after {
    content: "";
    height: 1px;
    position: absolute;
    top: 10px;
    width: 27%
}

样式.css

* {
    margin:0;
    padding-right:10px;
    padding-top:0;
    padding-bottom:0;
    padding-left:0;

}

body {
    margin:0;
    padding:0;
}

.calendar {
    table-layout: fixed;
    border-collapse:collapse;
    color: #000000;
    background: white;
    width:800px;
    float:left;
}

.calendar .direction a {
    color: #010101;
}


.calendar .direction .previous {
    padding:0.25em;
    float: left;

}

.calendar .direction .next {
    padding:0.25em;
    float: right;

}

.calendar table {
    width:80%;
    table-layout: fixed;
    border-collapse:collapse;
    color: #000000;
    margin-left: auto;
    margin-right: auto;

}

.calendar caption {
    font-weight:bold;
    padding:0.25em;
    background: #AAA;
    text-align: center;
}

.calendar th,
.calendar td {
    padding:0.1em;
    text-align:center;
    border:1px solid #AAA;
    height:100px;
}

.calendar .today {
    font-weight: bold;
    background: orange;
}

.calendar th:nth-of-type(6),
.calendar td:nth-of-type(6) {
    color: red;
}
.calendar th:nth-of-type(7),
.calendar td:nth-of-type(7) {
    color: red;
}

#events {
    width:600px;
    float:right;
    display: none;
    text-align: center;

}


.calendar .evenbox{
    background: linear-gradient(225deg, red, red 10px, transparent 10px, transparent);
}

标签： javascriptphphtmlcalendar

解决方案

以下

if(isset($_GET['day'])) {
    $day_clicked = $_GET['day'];
    $date_clicked = $year . '-' . $month . '-' . $day_clicked;
}

在您当前的代码中添加另一个测试以查看是否已设置 $date_clicked，如果尚未设置，请继续进行设置。

if (!isset($date_clicked)) {
     $date_clicked = $year . '-' . $month . '-' . date('d');
}

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