Question

我使用php，javascript和mySQL创建了一个日历。

日历本身有效，但是一旦我试图在某一天添加和查看事件，它就会拒绝加载，我不太清楚为什么。这个例子来自Sam的自学PHP，MySQL和Apache。

代码如下：

<?php
//$display = "";
$host = "xx";
$user = "xx";
$pass = "xx";
$db = "xx";

$mysqli = mysqli_connect($host, $user, $pass, $db);
// Check connection

define("ADAY", (60*60*24));
if ((!isset($_POST['month'])) || (!isset($_POST['year']))) {
$nowArray = getdate();
$month = $nowArray['mon'];
$year = $nowArray['year'];
} else {
$month = $_POST['month'];
$year = $_POST['year'];
}
$start = mktime (12, 0, 0, $month, 1, $year);
$firstDayArray = getdate($start);
?>
<!DOCTYPE html>
<html>
<head>
<title><?php echo "Calender: ".$firstDayArray['month']."
".$firstDayArray['year'] ?></title>
 </head>
 <style type="text/css">
table {
    border: 1px solid black;
    border-collapse: collapse;
}
th {
    border: 1px solid black;
    padding: 6px;
    font-weight: bold;
    background: #ccc;
}
td {
    border: 1px solid black;
    padding: 6px;
    vertical-align: top;
    width 100px;
}
</style>
<script type="text/javascript">
function eventWindow(url) {
event_popupWin = window.open(url, 'event', 'resizable=yes, scrollbars=yes,          toolbar=no, width=400, height=400');
    event_popupWin.opener = self;
}
</script>
<body>
<h1>Select a Month/Year Combination</h1>
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<select name ="month">
<?php
$months = Array("January", "February", "March", "April", "May", "June", "July",       "August", "September", "October", "November", "December");
for ($x=1; $x <= count($months); $x++) {
echo"<option value=\." $x ".\"";
if ($x == $month) {
    echo " selected";
}
echo ">".$months[$x-1]."</option>";
}
?>
</select>
<select name="year">
<?php
for ($x=1990; $x<=2020; $x++) {
echo "<option";
if ($x == $year) {
    echo " selected";
}
echo ">." $x ."</option>";
  }
  ?>
 </select>
 <button type="submit" name="submit" value="submit">Go!</button>
 </form>
<br/>
<?php
$days = Array("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
echo "<table><tr>\n";
foreach ($days as $day) {
echo "<th>$day</th>\n";
}
for ($count=0; $count < (6*7); $count++) { //initialise a variable called count
$dayArray = getdate($start);
if (($count% 7) == 0) {
    if ($dayArray['mon'] != $month) {
        break;
} else {
    echo "</tr><tr>\n";
}
}
if ($count < $firstDayArray['wday'] || $dayArray['mon'] !=$month) {
echo "<td>&nbsp;</td>\n";
} else {
   echo "<td>".$dayArray['mday']."</td>\n"; 
   $start += ADAY;
}
}
if ($count < $firstDayArray['wday'] || $dayArray['mon'] !=$month) {
echo "<td>&nbsp;</td>\n";
} else {
  $mysqli = mysqli_connect($host, $user, $pass, $db);
    $chkEvent_sql = "SELECT event_title FROM calender_events WHERE
        month(event_start) = '".$month."' AND
        dayofmonth(event_start) = '".$dayArray['mday']."' AND 
        year(event_start) = '".$year."' 
        ORDER BY event_start";

    $chkEvent_res = mysqli_query($mysqli, $chkEvent_sql);
                        or die(mysqli_error($mysqli));


            if (mysqli_num_rows($chkEvent_res) > 0) {
                while ($ev = mysqli_fetch_array($chkEvent_res)) {
                    $event_title .=    stripslashes($ev['event_title']);
            }
 } else {
    event_title = "";
}

echo "<td><a href=\"javascript:eventWindow('event.php?m=   ".$month."&amp;d=".$dayArray['mday']."&amp;y=".$year."');/>".$dayArray['mday']."</a><br/>  <br/>".$event_title."</td>\n";

        unset($event_title);

        $start += ADAY; 

}
echo "</tr><table>";
?>
<body>
</html>

但是，我认为问题在于此部分代码：

$chkEvent_res = mysqli_query($mysqli, $chkEvent_sql);
                        or die(mysqli_error($mysqli));


            if (mysqli_num_rows($chkEvent_res) > 0) {
                while ($ev = mysqli_fetch_array($chkEvent_res)) {
                    $event_title .=       stripslashes($ev['event_title']);
            }
} else {
    event_title = "";
}

echo "<td><a href=\"javascript:eventWindow('event.php?m= ".$month."&amp;d=".$dayArray['mday']."&amp;y=".$year."');/>".$dayArray['mday']."</a><br/> <br/>".$event_title."</td>\n";

有人可以帮忙吗？感谢

使用php，javascript和mySQL创建日历

0 个答案: