php结果在一个日期范围内

I am an absolute newbie and still working out the kinks. So spare me if the code looks amateurish.

I have this form.html

The user enters the date range.

      form action="report.php" method="post"
           FROM DATE <input type="DATE" class="textarea" name="dateStart"><br> </br>
            TO DATE <input type="DATE" class="textarea" name="dateEnd">
            <input type="submit" class="textarea">
             </form> 

This gets processed in Report.php now report.php looks like this:

             php
              $_POST["dater"]=$date;
              $con=mysqli_connect("LOCALHOST","xxxxxxx","xxxxxx","xxxxx"); 
              // Check connection
              if (mysqli_connect_errno())
               {
             echo "Failed to connect to MySQL: " . mysqli_connect_error();
                }

           $result = mysqli_query($con,"SELECT * FROM `xxxxxxx` 
            dater);


          echo "<table border='1'>
          <tr>
        <th>DATE</th>
        <th>MBM</th>
        <th>bulkTank</th>
        <th>bagsAt40</th>

";

     while($row = mysqli_fetch_array($result))
           {
          echo "<tr>";
            echo "<td>" . $row['date'] . "</td>";
             echo "<td>" . $row['bulkTank'] . "</td>";
           echo "<td>" . $row['bagsAt40'] . "</td>";
           echo "</tr>";
                }
            echo "</table>";

I have no clue what to do next.... its not working, i tried a few things but how can I echo the result within a specific date range. Thanks!

New edit ---- This is what the new code looks like... Form START DATE
END DATE

     Report.php

       <?php
           $date=$_POST["dateStart"];
                 $con=mysqli_connect("LOCALHOST","XXXXXXX","++++++","XXXXXX"); 
                // Check connection
                if (mysqli_connect_errno())
                 {
                echo "Failed to connect to MySQL: " . mysqli_connect_error();
                      }

                           $result = mysqli_query($con,"SELECT * FROM `WeeklyStockTake` 
                           WHERE dateColumn=$date);


                             echo "<table border='1'>   <!--line 32 starts here--!>
                                       <tr>
                                        <th>DATE</th>
                                           <th>MBM</th>
                                          <th>bulkTank</th>
                                              <th>bagsAt40</th>

-----If I process it now I get this error - Parse error: syntax error, unexpected T_STRING in /home/simples2/public_html/test/report.php on line 32 (I have commented above as to where it starts) How to I declare the end date?

Thanks and regards!

Dont know if its a typo but php should be <?php

$_POST["dater"]=$date

This should be

$date=$_POST["dateStart"]

Also you should add a POST for dateEnd also

The query should be more like:

SELECT * FROM `xxxxxxx` WHERE dateColumn<=$date