PHP search data with 2 table relations based on date range input - php

Question

I have a problem with my code here :
The error is : Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in C:\xampp\htdocs\siix_dev\overtime\track_reports.php on line 333
I think the error in join table function, but I can't analyze whats solution for this case.
<?php
include ("config.php");
$bagianWhere = "";
if (isset($_POST['chkBadge']))
{
$badge_id = $_POST['badge_id'];
$status_acknowledge = "Acknowledged";
if (empty($bagianWhere))
{
$bagianWhere .= "badge_id = '$badge_id' order and t_submissions.submission_no=t_acknowledged.submission_no and t_acknowledged.status_acknowledge='$status_acknowledge' by time_submission DESC";
}
}
if (isset($_POST['chkEmp']))
{
$employee_name = $_POST['employee_name'];
$status_acknowledge = "Acknowledged";
if (empty($bagianWhere))
{
$bagianWhere .= "employee_name LIKE '$employee_name' and t_submissions.submission_no=t_acknowledged.submission_no and t_acknowledged.status_acknowledge='$status_acknowledge' order by time_submission DESC";
}
else
{
$bagianWhere .= " AND employee_name LIKE '$employee_name' and t_submissions.submission_no=t_acknowledged.submission_no and t_acknowledged.status_acknowledge='$status_acknowledge' order by time_submission DESC";
}
}
if (isset($_POST['chkOtdate']))
{
$date_from = $_POST['date_from'];
$date_to = $_POST['date_to'];
$status_acknowledge = "Acknowledged";
if (empty($bagianWhere))
{
$bagianWhere .= "ot_date between '$date_from' and '$date_to' and t_submissions.submission_no=t_acknowledged.submission_no and t_acknowledged.status_acknowledge='$status_acknowledge' order by time_submission DESC";
}
else
{
$bagianWhere .= " AND ot_date between '$date_from' and '$date_to' and t_submissions.submission_no=t_acknowledged.submission_no and t_acknowledged.status_acknowledge='$status_acknowledge' order by time_submission DESC";
}
}
$query = "SELECT t_submissions.submission_no, t_submissions.badge_id,
t_submissions.employee_name, t_submissions.ot_date, t_submissions.dept_name,
t_submissions.ot_from, t_submissions.ot_to,
t_submissions.remarks, t_submissions.submission_by, t_acknowledged.acknowledge_by,
FROM t_submissions, t_acknowledged WHERE ".$bagianWhere;
$hasil = mysql_query($query);
if(mysql_num_rows($hasil) > 0)
{
?>
<div class="outer">
<div id="main" class="wrapper">
<div class="content-area">
<table cellspacing="0" class="font">
<thead>
<tr>
<th class="th">Form No</th>
<th class="th">Badge ID</th>
<th class="th">Name</th>
<th class="th">OT Date</th>
<th class="th">OT From</th>
<th class="th">OT To</th>
<th class="th">Submission By</th>
<th class="th">Status Ack.</th>
<th class="th">Status App.</th>
</tr>
</thead>
<?php
while($submission = mysql_fetch_array($hasil))
{?>
<tbody>
<tr>
<td class="td"><?php echo $submission['submission_no'];?></td>
<td class="td"><?php echo $submission['badge_id'];?></td>
<td class="td"><?php echo $submission['employee_name'];?></td>
<td class="td"><?php echo $submission['ot_date'];?></td>
<td class="td"><?php echo $submission['ot_from'];?></td>
<td class="td"><?php echo $submission['ot_to'];?></td>
<td class="td"><?php echo $submission['submission_by'];?></td>
<td class="td"><?php echo $submission['acknowledge_by'];?></td>
<td class="td"><?php echo $submission['approval_by'];?></td>
</tr>
</tbody>
<?php
}?>
</table>
</div>
</div>
</div>
<?php
}
else
{
echo '<p STYLE="position:absolute; TOP:170px; left:500px;">Data not found.</p>';
}
;
?>
The search using date range input and 2 table relations.
Please help me to solve this problem.
Thank you.

Answer 1

The SQL query is being set incorrectly (as such supplying a FALSE to mysql_num_rows). Most likely within your WHERE clause $bagianWhere. From first glance it seems that if both $_POST['chkEmp'] and $_POST['chkOtdate'] are set it would return an error as the latter does not begin with an AND.
I would recommend you test the query by itself with all possible combinations (they seem small anyway).
Also, is a cartesian product really needed here?
Edit: $bagianWhere .= "badge_id = '$badge_id' order and - that order seems out of place?