数据筛选查询不工作

Question

我正在为database.To查询创建一个日期和时间筛选器，该筛选器将在输入字段中选择日期到日期的结果。我已经编写了代码，我想我在代码中遗漏了一些东西，因为它显示了，没有找到任何记录，

表格代码：

<form method="POST" action="result_search.php">
Filter Result By Date :
From <input type="datetime" name="fdat" value="<?php echo date('Y-m-d H:i:s'); ?>">
To <input type="datetime" name="tdat" value="<?php echo date('Y-m-d H:i:s'); ?>">
<input type="submit" name="search" value="Filter Stats">
</form>

带有分页的PHP代码：

<?php
$from_dat=date($_POST['fdat']);
$to_dat=date($_POST['tdat']);
echo $from_dat;
echo "</br>".$to_dat."</br>";
$page = (int)(!isset($_GET["page"]) ? 1 : $_GET["page"]);
if ($page <= 0) $page = 1;

$per_page = 10; // Set how many records do you want to display per page.

$startpoint = ($page * $per_page) - $per_page;

$statement = "`user_data` where (`date_time_vote_1` AND `date_time_vote_2` AND `date_time_vote_3` AND `date_time_vote_4` AND `date_time_vote_5` AND `date_time_vote_6` AND `date_time_vote_7` AND `date_time_vote_8` AND `date_time_vote_9` AND `date_time_vote_10`) BETWEEN '$from_dat' AND '$to_dat' ORDER BY `poll_id` ASC"; // Change `records` according to your table name.

$results = mysqli_query($con,"SELECT * FROM {$statement} LIMIT {$startpoint} , {$per_page}") or die(mysqli_error($con));

if (mysqli_num_rows($results)!= 0) {

    // displaying records.
    while ($row = mysqli_fetch_assoc($results)) {
        echo "<tr><td class='active'>".$row['user_pin']."</td>";
        echo "<td class='info'>".$row['user_pin_entry']."</td>";
        echo "<td class='success'>".$row['user_vote_1']."</br>";
        echo  $row['user_vote_2']."</br>";
        echo  $row['user_vote_3']."</br>";
        echo  $row['user_vote_4']."</br>";
        echo  $row['user_vote_5']."</br>";
        echo  $row['user_vote_6']."</br>";
        echo  $row['user_vote_7']."</br>";
        echo  $row['user_vote_8']."</br>";
        echo  $row['user_vote_9']."</br>";
        echo  $row['user_vote_10']."</td>";
        echo "<td class='info'>".$row['ip_user_vote_1']."</br>";
        echo $row['ip_user_vote_2']."</br>";
        echo $row['ip_user_vote_3']."</br>";
        echo $row['ip_user_vote_4']."</br>";
        echo $row['ip_user_vote_5']."</br>";
        echo $row['ip_user_vote_6']."</br>";
        echo $row['ip_user_vote_7']."</br>";
        echo $row['ip_user_vote_8']."</br>";
        echo $row['ip_user_vote_9']."</br>";
        echo $row['ip_user_vote_10']."</td>";
        echo "<td class='success'>".$row['date_time_vote_1']."</br>";
        echo  $row['date_time_vote_2']."</br>";
        echo  $row['date_time_vote_3']."</br>";
        echo  $row['date_time_vote_4']."</br>";
        echo  $row['date_time_vote_5']."</br>";
        echo  $row['date_time_vote_6']."</br>";
        echo  $row['date_time_vote_7']."</br>";
        echo  $row['date_time_vote_8']."</br>";
        echo  $row['date_time_vote_9']."</br>";
        echo  $row['date_time_vote_10']."</td></tr>";
   }
  echo "</table>";
}
else {
     echo "No records are found.";
} 
 // displaying paginaiton.
echo pagination($statement,$per_page,$page,$url='?');
?>

Answer 1

以下部分似乎是问题所在。

(`date_time_vote_1` AND `date_time_vote_2` AND `date_time_vote_3` AND `date_time_vote_4` AND `date_time_vote_5` AND `date_time_vote_6` AND `date_time_vote_7` AND `date_time_vote_8` AND `date_time_vote_9` AND `date_time_vote_10`) BETWEEN '$from_dat' AND '$to_dat'

因为

SELECT ('2015-08-26' BETWEEN '2015-08-01' AND '2015-08-31') AND ('2015-08-27' BETWEEN '2015-08-01' AND '2015-08-31') AND ('2015-08-28' BETWEEN '2015-08-01' AND '2015-08-31')

返回true，而

SELECT ('2015-08-26' AND '2015-08-27' AND '2015-08-28') BETWEEN '2015-08-01' AND '2015-08-31' 

返回false