Unable to retrieve dates from attendance record - php

Question

I have attendance record database
id | emp_id | attendance_date.
I inserted attendance_date by varchar(200).I want to retrieve dates between startdate and enddate if I choose datetime picker.My date format is m/d/Y.
If I retrieve 04/1/2015 and 04/30/2015,it isn't displayed.But If I retrieve
12/1/2014 and 12/31/2014,record is displayed.The problem is the month.It have unnecessary zero in front of month.How can I do that?
Please help me?Database is like that.
id emp_id attendance_date
1 1 10/4/2014 10:36
2 1 10/30/2014 9:36
attendanceRecord.php
<form enctype="multipart/form-data" method="post" class="form-inline" role="form" action="attendance_search.php">
<!--Start Date-->
<div class="">
<div class="form-group required">
<label for="startdate" class="control-label">Start Date:</label>
<input class="form-control" placeholder="Choose Date " type="text" id="datepicker-8" name="startdate" required="required" />
</div>
</div><br/><br/>
<!--End Date-->
<div class="">
<div class="form-group required">
<label for="enddate" class="control-label">End Date:</label>
<input class="form-control" placeholder="Choose Date " type="text" id="datepicker-9" name="enddate" required="required" />
</div>
</div>
<!--Create Button-->
<div class=""> <br/>
<input class="btn btn-success" type="submit" value="Search" />
</div>
</form>
**attendance_search.php**
<form method="post" name="salaryform" action="" class="form-vertical">
<div class="table table-hover">
<table border="1" cellspacing="0" class="table" >
<tr class="success" >
<th>Employee ID</th>
<th>Date</th>
<th>Timein Timeout</th>
</tr>
<?php
include 'connect.php';
error_reporting(E_ALL ^ E_NOTICE);
if(!empty($_POST)){
$startdate= mysql_real_escape_string(date( "m/d/Y H:i:s",strtotime($_POST["startdate"])));
$enddate= mysql_real_escape_string(date("m/d/Y H:i:s",strtotime($_POST["enddate"])));
$sql="SELECT * FROM attendance2 WHERE attendance_date between '".$startdate."' and '".$enddate."'";
$retval = mysql_query($sql);
if (!$retval) {
die('Could not get data: ' . mysql_error());
}
while ($row = mysql_fetch_array($retval, MYSQL_ASSOC)) {
echo '<tr class="active">';
echo '<td >'.$row['emp_id'].'</td>';
echo '<td>'.$row['attendance_date'].'</td>';
echo '<td>'.$row['timein_timeout'].'</td>';
}
echo '</tr>';
echo '</table>';
}
?>
</table>
</div>
</form>

Answer 1

If you don't need the time of start date and end date then you could do something like this,
$startdate = mysql_real_escape_string(date( "m/d/Y",strtotime($_POST["startdate"])));
$enddate = mysql_real_escape_string(date("m/d/Y",strtotime($_POST["enddate"])));
$sql="SELECT * FROM attendance2 WHERE date(attendance_date) between '".$startdate."' and '".$enddate."'";